In American Sign Language, signing 13 combines the ASL number 3 handshape with a downward tap on the fingertips of the non-dominant hand. Start with your dominant hand in the 3 handshape (middle, ring, and pinky fingers extended, thumb and index finger touching) at chest height, then move it downward to tap the fingertips of your non-dominant hand, which remain flat and steady.
This guide explains the handshape, motion, placement, and rhythm so you can produce 13 clearly and confidently. Use it as a durable reference for everyday counting, phone numbers, years, and time references.