How to Sign “What” in ASL: Baby Sign Language Guide

“What” is the universal shrug, made official. Open palms shake side to side under a questioning face — the first question word most signing toddlers produce.

How to Sign “What” in ASL

ASL sign for what, step 1: open hands held out, palms up
ASL sign for what, step 2: open hands shaken slightly side to side

Photos: Rodasmith via Wikimedia Commons, CC BY-SA 3.0

  1. Open the hands: Both hands open and relaxed, palms up, in front of you.
  2. Shake: Move them side to side a small amount, like an exaggerated shrug.
  3. Ask with your face: Eyebrows down and head tilted slightly forward — in ASL the face marks the question.

Lowered eyebrows mark “wh-” questions in ASL grammar — the face is not decoration, it is the question mark.

Step-by-Step Photos

ASL sign for what, step 1: open hands held out, palms up
Step 1: Hold both hands open in front of you, palms up.
ASL sign for what, step 2: open hands shaken slightly side to side
Step 2: Shake them gently side to side, with a questioning face.

Photos: Rodasmith via Wikimedia Commons, CC BY-SA 3.0

When to Use It With Your Child

  • At mystery sounds: A siren outside — “What is that?” with the sign and big curious eyes.
  • In games: Hide a toy under a cup and sign “what?” before the reveal.
  • When they babble-point: Answer their gesture with “what? the truck?” — modeling the question they meant.

Tips for Success

  • Your facial expression teaches as much as your hands here — be theatrical.
  • Any palms-up shrug counts; this one has a generous margin for error.
  • “What” plus pointing covers half of toddler curiosity — encourage the combo.

Signs Related to “What”

“Where” (a wagging index finger) and “who” (L-hand at the chin) extend the question set. Wh-question signs all share the lowered-brow face — learn the face once and it works for all of them.

Most toddlers enter their famous “what’s that?” phase between 18 and 24 months — a signed “what” simply opens the floodgates earlier.