You cannot do two things at once

[andrewducker]

While sitting at your desk make clockwise circles with your right foot.

While doing this, draw the number "6" in the air with your right hand.

Your foot will change direction.

Comments

[darkoshi]

I thought I was doing it, then realized I was using my left hand, not the right one...

similar to something on a kids tv show recently - hold your hands in front of you with the index fingers touching, then try to move each finger in circles (downwards, towards & away from you) in opposite directions....