While turning it, place your other hand on the rotor head and feel for any movement. Hermes Orange Purse. The right and left movement of the nose is called a "yaw movement," and it's controlled by the tail rotor. The thumb and the back of the deck make an angle of about thirty degrees, as do the other fingers at the front. Hermes Orange Purse. Here are a few convincing touches given by Juan Tamariz: Now and then go back in the spread, as though double checking certain combinations. Automatically the spectators will keep thinking and anticipate your next statement—after all, you mentioned two possible choices. Hermes Orange Purse. I don't mean that you have to be able to keep the helicopter in a dead-still hover, but you should be able to keep it within a 3-foot circle (about 1 meter).