This bilingual checklist for baby sign language covers modeling, repetition, and progress. Baby sign language means simple hand signs used with spoken words to help a baby share needs before clear speech. Pick a small set of daily signs and use them the same way in both languages. Watch for first tries around eight months, then count progress across signs, words, and languages.
Table of Contents
- How do you model signs clearly?
- How does repetition build memory?
- When do signs and words appear?
- How do you track two languages?
- What limits should families keep in mind?
How do you model signs clearly?
Sanford Health advises parents to model 3–5 routine-based signs by saying the word aloud while making eye contact and performing the sign, such as signing "more" at every bite, as described in Sanford Health guidance. Pick routines you repeat every day.
Keep the sign visible and paired with speech. Stay close and pause after each model. Let the baby look, reach, or imitate before you repeat.
- Choose 3–5 signs tied to daily routines, such as "more" at bites.
- Say the word aloud, make eye contact, then sign.
- Use the same sign in the same routine in both languages.
How does repetition build memory?
Sanford Health also ties learning to repetition: use the same sign plus spoken word consistently in daily routines, for example signing "milk" at each feeding, with regular practice to support retention. Same sign, same word, and same moment help the link stick. Short daily practice beats occasional long sessions.
Keep both languages spoken around the sign. One parent can say "milk" while signing at morning feeds. The other can use the second-language word with the same sign at evening feeds.
When do signs and words appear?
The American Academy of Pediatrics notes families can start exposing infants at 6–7 months, when babies hold gaze, with first self-produced signs typically emerging around 8 months and communicative use by 8–9 months, as reported in this MedicalXpress report. Start with watching and modeling. Expect watching first, then rough tries, then clearer use.
The University of Washington reports simultaneous bilingual babies reach language milestones at the same ages as monolingual peers, with first words in one or both languages and two-word combinations around 18 months. Northwestern University found observing American Sign Language supported categorization in hearing 6-month-olds never exposed to sign. Signed input fits early learning; it does not change the timetable.
How do you track two languages?
The American Speech-Language-Hearing Association recommends counting total vocabulary across both languages or conceptual vocabulary, since bilingual children learn different words in each context with only ~30% overlap, explained in ASHA guidance. A bilingual checklist should add signs and words together. A concept known in either language still counts.
Record the date, routine, sign, and word used. Note whether the baby watched, tried, or used the sign to ask. Review weekly for new tries and for signs used without help.
What limits should families keep in mind?
The University of Hertfordshire found in a randomized study of 40 mother–baby pairs tracked from 8 months for 12 months that gesturing babies used signs before speech but learned associated words no faster and showed no enhanced language development, summarized in this ScienceDaily summary. Signs can give an earlier way to ask. They do not speed word learning by themselves.
The CDC points families to 1-year markers such as waving, pointing, first meaningful words, and response to name. Keep talking as the main input in both languages. Use signs to cut frustration and support bonding, not to replace speech.