The first thing that you must do is get an average person. Tell them you can control their leg. now have them sit down in a chair and tell them to start moving their right leg in a clockwise motion. now say " The magic number is 6" now have them draw a 6 with their finger in the air while their leg is still in motion and their leg will change directions as soon as they draw the 6. Say "ahahaha try to resist" and have them repeat the proccess again and the same results should appear. they will think that you have total control over their leg.