Lift you right foot off the ground and make clockwise circles. Next, lift your right hand and draw the number 6 in the air. Can your foot keep up? Or does it change direction?
I've found that a lot of people who play drums can handle this pretty well. It's not too bad if you don't focus on either your hand or your foot and stare at a blank spot on the wall.
Just don't let anybody catch you if you're trying this where you work.