NOT A TRICK - YOUR BRAIN IS IN CONTROL

If you see this lady turning in clockwise you are using your right brain.

If you see it the other way, you are using left brain.

Some people do see both ways, but most people see it only one way.

BOTH DIRECTIONS CAN BE SEEN.

Alan Note: I usually see it going counter-clockwise at the start and then it alternates between one direction and then the other. No trick, just your use of left or right brain or both.

You can concentrate and change the rotation direction at will to prove it to yourself. I do it fairly easily, so it's not something weird or horribly difficult. Have fun and pass this on to your friends and family.