me allow the coin to slide behind the fingers so that they hide it from the view of persons standing in front of you. It will then be held flat against the two middle fingers by a slight pressure of the thumb. Keeping the right hand quite still, turn the left hand over, and open it, as if you had suddenly remembered that you had not shown that hand empty at the beginning. Then turn the hand back to its previous closed position and, as you do so, allow the coin to slip from behind the