How does 'snapping' a finger, make that 'snap' sound?

Snapping (or clicking) one's fingers is the act of creating a snapping or clicking sound with one's fingers. Primarily this is done by building tension between the thumb and another (middle, index, or ring) finger and then moving the other finger forcefully downward so it hits the palm of the same hand at a high speed. read more

Some people say it is your fingers rubbing together to make this sound, but for that to happen, you would need air compression. Try snapping your fingers together by moving them backwards or sliding your hands together. you do not hear a snapping sound. read more