In American Sign Language the OK gesture represents the number 9 when held in a stationary position with the palm facing away from the signer. This ASL numerical sign is the last in a sequence of single-digit integers where quantities of fingers denote the numbers 1 through 5, and then the thumb touches each finger in turn to denote '6' (pinky finger), '7' (ring finger), '8' (middle finger), and finally '9' (index finger). When shaken from left to right, the sign for the number 9 becomes the number 19.