This is the rough thing on an endeavor to recreate my younger sister's 'dance' she does when nervous - it's rather easy: hop to either foot, elbows at 90degrees at the waist, wave hands in a fan-style.
Anyway!
Legs:
![Posted Image](http://img.photobucket.com/albums/v152/kathuerun/bouncylegs.gif)
Although the more I see them, the more they look like they're running.