How to Sign "Do" in ASL

The short answer

The common ASL sign for DO, meaning to do an action, uses both hands at once. Hold both hands in front of your body with palms facing down. Shape each hand roughly like the letter C, with the thumb and fingers curved toward each other. Then move both hands together to one side and back a couple of times. Many signers close the thumb and fingers slightly with each movement, so the hands look like they are pinching or tapping.

No source material was supplied for this article. The description above reflects how the sign is widely taught, but handshape details and regional variants differ. Before relying on it, compare it with a video from a reputable ASL dictionary or check with a Deaf signer.

Which "do" do you mean?

In English, "do" has several jobs. Which one you mean changes whether you sign it at all.

• Doing an action ("What are you doing?", "I'll do it"): use the DO sign described above.
• Helper verb in a question ("Do you like coffee?"): this is usually not signed. ASL marks a yes/no question with facial grammar, mainly raised eyebrows, often with a slight forward head tilt held through the question.
• Helper verb for emphasis or negation ("I do agree", "I don't know"): there is usually no separate DO sign. Emphasis comes from facial expression and movement. Negation uses signs such as NOT or a dedicated negative form like DON'T-KNOW.
• Asking about someone's work ("What do you do?"): this is commonly signed with the DO sign, often combined with WHAT or a question expression, rather than word for word.
• The letters D-O, such as an abbreviation or name: fingerspell D, then O.

Step by step

• 1. Raise both hands to about chest or lower-chest height, comfortably in front of you.
• 2. Turn both palms to face the floor.
• 3. Curve the fingers and thumb of each hand into a C-like shape.
• 4. Move both hands together sideways and back, two or three short movements.
• 5. If you want the variant many signers use, close the thumb and fingers toward each other slightly as you move.
• 6. Match your facial expression to the sentence. For a question such as "What are you doing?", lower or furrow your brows, since that marks a question that asks for information.

Checking the sign on camera

If you are practicing for a video call, record a short clip or watch your self-view. Having camera access only means the browser or app can use the camera. What matters here is whether the recorded video shows the sign clearly.

• Framing: both hands and your face should stay fully in the frame during the side-to-side movement. Sit back if your hands get cut off at the edges.
• Clarity: if the hands blur, add light from in front of you, and avoid a bright window behind you.
• Background: a plain physical background usually makes hands easier to see than a busy room. Virtual background effects can distort or erase moving hands, so turn them off if your fingers flicker or disappear.
• Comparison: play your clip next to a dictionary video and check the handshape, palm direction, movement and facial expression.

Limitations

This guide covers a single sign and its most common uses. It is not a substitute for learning ASL grammar, and it cannot confirm regional or community variants. Feedback from a qualified ASL instructor or a fluent Deaf signer is the most reliable way to check your sign.