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To sign "21" in American Sign Language (ASL), extend your index finger and thumb upward while keeping your palm facing sideways. Then, make a snapping motion with your thumb.
How to sign
To sign “21” in American Sign Language (ASL), extend your index finger and thumb, keeping them upright, with the palm facing sideways. Next, perform a triggering motion on the thumb.
To sign “21” in American Sign Language (ASL), extend your index finger and thumb, keeping them upright, with the palm facing sideways. Next, perform a triggering motion on the thumb.