Which way is the dancer spinning? And can you alternate between the two?
HINT: Put your hand/GTalk box over the dancer, think whichever way you want it to go, then remove your hand. Best if you can see part of her head. My mental preference was originally counterclockwise, then clockwise, and now it take a bit of effort to get her to go back to counterclockwise.
(h/t Kottke.org)