I've always wondered about this--and if there's already a thread, mea culpa--but what do you DO on stage when your really rockin'? Do you jump around, shift back and forth between your feet, swing the headstock, white man's overbite, etc? FWIW, I find myself shrugging on the upbeat, looking off to one side, and nodding my head. Not sure why. Guess that's what's in the genes.