One crystal stick juggling move involves bouncing the stick off of the knee. Do knee bounces when juggling crystal sticks with tips from a juggler in this free video on juggling for beginners.

Expert: Isaac Shivvers
Bio: Isaac Shivvers has been juggling for about three years and has been affiliated with the Des Moines Juggling Society in Iowa, the Harvard University Juggling Club, and the MIT Sunday Juggling Club.
Filmmaker: Christian Munoz-Donoso