Left Brain/Right Brain

While sitting at your desk, lift your RIGHT foot completely 
off the floor and make CLOCKWISE circles.

Now, while doing this, draw the number "6" in the air with 
your RIGHT-hand.

Your foot will change direction and there's nothing you can 
do about it.

Yep, go ahead do it again...it keeps happening.

The original source of this "teaser" is not known.