Teaching baby sign language at home starts with picking just 2-3 simple signs and using them consistently with your baby, while speaking the words aloud at the same time. The most common starter signs are “more,” “milk,” “hungry,” “sleep,” “help,” and “thank you.” For example, when offering your baby milk, you would sign the word while saying it out loud, and repeat this pairing regularly so your baby learns to associate the hand movement with the word and the object. The best time to start is between 6 and 9 months old, though babies can begin paying attention to signs as early as 4 months. This article covers when to begin, which signs to teach first, proven teaching methods, how to build signing into your daily routine, what milestones to expect, and what the research actually says about whether baby sign language helps or hinders speech development.
Starting baby sign language doesn’t require special training or materials. You learn the signs yourself, use them consistently when interacting with your baby, and let your baby’s natural curiosity and motor development do the rest. Many parents are surprised to learn that babies actually learn signed language 2 to 3 months earlier than spoken language, since their hands develop motor control before the fine mouth movements needed for speech. This advantage happens because signing is physically easier for infants—hand movements are simpler than the precise tongue and lip coordination required for speech sounds.
Table of Contents
- When to Start Teaching Baby Sign Language
- Choosing the Right Starting Signs for Your Baby
- The Best Way to Teach Signs at Home
- Building Sign Language Into Your Daily Routine
- Will Sign Language Delay Your Baby’s Speech?
- Tracking Your Baby’s Sign Language Progress
- Expanding Your Family’s Signing Skills
- Conclusion
When to Start Teaching Baby Sign Language
The optimal window to introduce sign language is between 6 and 9 months of age. At this stage, babies have enough fine motor control to begin watching and mimicking hand shapes, and they’re developmentally ready to start connecting signs with meaning. However, you don’t need to wait until your baby is 6 months old to begin exposing them to signs—research shows that babies can pay attention to and track hand movements as early as 4 months old. Starting earlier means your baby has longer exposure to the signs before they’re developmentally ready to produce them, which can only help.
The fact that babies develop sign language earlier than spoken language surprises many parents. On average, babies produce their first recognizable sign around 8.5 months of age. By contrast, most hearing babies don’t say their first word until closer to 12 months. This 3-month advantage isn’t because signing is easier to learn—it’s because babies can control their hands before they can control their mouth precisely enough for intelligible speech. By 24 months, signing children can produce compound words and full sentences, showing that their language development follows the same trajectory as speaking children, just shifted earlier.
Choosing the Right Starting Signs for Your Baby
Begin with only 2 to 3 signs rather than introducing 10 at once. The most effective starting signs are ones your baby encounters multiple times daily and that address their immediate needs or interests. The commonly recommended beginner signs are “more,” “milk,” “hungry,” “sleep,” “help,” and “thank you.” Pick 2 or 3 from this list based on what happens most often in your baby’s day. If you’re bottle or breast feeding frequently, “milk” is an obvious choice. If mealtimes are chaotic, “hungry” and “more” work well together.
Once your baby consistently produces these first signs—usually within a few months—you can add more. The reason to start small is practical: it gives your baby a realistic chance to see the sign repeatedly and build the motor memory needed to reproduce it. When you introduce too many signs at once, you dilute the frequency of each individual sign, and your baby’s brain has trouble building strong associations. However, this doesn’t mean you should stop using other words and signs in front of your baby. You can speak normally and use other signs naturally—the “starting with 2 or 3” rule just means those are the ones you’re actively teaching and watching for.
The Best Way to Teach Signs at Home
Every time you sign, say the word out loud at the same time. This simultaneous pairing is essential. When your baby sees your hands make the sign for “milk” while hearing you say “milk,” their brain starts connecting the visual pattern with the word and the concept. This isn’t redundancy—it’s how babies learn language, whether signed or spoken. The words reinforce the signs and vice versa, and this combined input actually supports speech development rather than interfering with it. Pair signs with the actual objects or actions whenever possible.
If you’re teaching “milk,” show your baby the milk while you sign and say the word. If you’re teaching “sleep,” sign and say it as you’re putting them down for a nap. This concrete connection between the sign, the word, and the real thing makes the learning much faster and more meaningful. Repetition across different contexts matters too—your baby needs to see the sign for milk at the bottle, in a cup, in the fridge, and in picture books. Consistency from all caregivers helps as well; if one parent signs and speaks while the other only speaks, the learning slows down. However, if only one parent uses signs, your baby will still learn—it just takes longer.
Building Sign Language Into Your Daily Routine
Make signing a natural part of your interactions rather than a separate lesson time. The most successful families integrate signs into moments that already happen throughout the day: mealtimes, diaper changes, bath time, and playtime. When you change your baby’s diaper, sign and say “diaper” or “clean.” When you give them a snack, sign and say “more” or “thank you” as they reach for it. During bath time, sign “water,” “splash,” and “wash.” The key is that these are real moments in your baby’s day, not contrived teaching sessions. Expect that your baby will understand signs before they can produce them.
Receptive language always comes before expressive language in both spoken and signed communication. Your baby might understand “more” for a month or two before they make their own version of the sign. Their first attempts will be sloppy—the hand position might be slightly off, or the movement might be smaller or less precise than the adult version. That’s completely normal and you should respond enthusiastically to their approximations. If your baby makes any hand movement in response to your signing, count it as a success and reinforce it with praise and the actual thing they signed for (more food, more playtime, etc.).
Will Sign Language Delay Your Baby’s Speech?
This is the most common concern, and the research is clear: no, baby sign language does not delay speech development. In fact, studies suggest it may encourage speech. A landmark 2000 study by Goodwyn, Acredolo, and Brown found that hearing infants whose parents used symbolic gestures (including sign language) outperformed children whose parents used only vocal language on follow-up language tests. This advantage persisted even when researchers controlled for differences in parental education and socioeconomic status.
The American Academy of Pediatrics approves simple sign language for infants and toddlers, which provides professional reassurance for parents worried about developmental delays. Research from Michigan State University also found that baby sign language reduces frustration in young children—when babies can express their needs through signs before they can speak clearly, they have fewer communication breakdowns and tantrums. However, it’s important to note that while baby sign language clearly doesn’t harm speech development and may provide some immediate communication benefits, there’s no compelling evidence that it creates long-term developmental advantages compared to children who don’t learn to sign. In other words, signing is beneficial as a communication tool right now, but it’s not a magic shortcut to a smarter or more advanced child later.
Tracking Your Baby’s Sign Language Progress
The typical progression starts with understanding signs you make before your baby produces their own. Around 8 to 9 months, you might see your baby’s first recognizable sign—though it may be a loose approximation of the real thing. By around 13 months, the average signing baby has produced about 10 different signs. This is faster than the word development of non-signing babies, who typically have about 3 to 5 words by that age. By 17 months, you can expect to see your baby combine two signs together, like signing “more milk” or “mommy help.” These milestones reassure you that your teaching is working.
Keep in mind that development varies widely. Some babies produce their first sign as early as 7 months, while others don’t until 10 or 11 months. Both are completely normal. The important thing is that your baby is understanding the signs you make (comprehension) before they’re producing them consistently (expression). If your baby understands when you sign “more” and looks expectantly at their snack, that’s progress even if they haven’t signed it back yet. Patience and consistency matter more than speed at this stage.
Expanding Your Family’s Signing Skills
As your baby’s signing vocabulary grows, you’ll want to expand yours too. Learning signs yourself doesn’t require a class, though classes can be helpful if you prefer structure. Online resources, YouTube videos, and apps teach American Sign Language (ASL) basics. However, with a young child, you don’t need to learn perfect ASL—simplified “baby signs” with your baby work fine. You can use ASL signs, or you can modify them to be easier for both you and your baby to produce and see.
What matters most is consistency: use the same sign the same way each time. Involving other caregivers—grandparents, daycare providers, older siblings—makes signing stick faster for your baby. A baby who sees the same signs from multiple people reinforces those neural connections more quickly than a baby whose only exposure is from one parent. You don’t need everyone to be fluent. Teaching your baby’s daycare provider or grandparents just the starter 2 or 3 signs makes a real difference in how quickly your baby learns and uses them.
Conclusion
Teaching baby sign language at home is straightforward and requires no special equipment or expertise. Start between 6 and 9 months with just 2 or 3 simple signs like “more,” “milk,” or “help.” Use the signs consistently while speaking the words aloud, pair them with real objects and actions, and integrate them naturally into your baby’s daily routines. Your baby will likely produce their first sign around 8 or 9 months and will develop signed language several months ahead of spoken language—not because signing is easier to learn, but because babies can control their hands before their mouths.
Begin today with your baby’s most frequent words and interactions, stay consistent across caregivers, and be patient with your baby’s early approximations. The research confirms that signing doesn’t delay speech and may actually support language development by giving your baby a working communication system before clear speech emerges. Whether you use formal ASL or simplified home signs doesn’t matter—what matters is showing up consistently with the signs and following your baby’s lead as they learn.