Two kids are sitting on the front porch and both crack their knuckles before one of the cracks his neck.
One boy cracks his knuckles, tanother cracks his, then the first boy cracks his neck.
Two young boy's crack their hands and other parts of their body together.
Two men begin cracking their fingers and then their necks on a house porch.
Two young men have a knuckle-cracking contest and crack their hand knuckles, then the last guy cracks his neck.
Two males are sitting outside in plastic chairs and crack their nuckles and then one of them cracks his neck.
A guy stretches his arms and cracks his folded fingers when a guy sitting near him does the same thing so the first guy cracks his neck.
two boys are sitting on chairs cracking their knuckles and their necks.
Some boys show off their ability to crack different parts of their bodies.
Two young boys take turns cracking different parts of their body.