cards, and allowed you to identify a chosen card. the trick is simple, get the volunteer to select a card, and place it back into the packet of 21 cards. you then deal the cards into 3 piles, asking the volunteer to note which pile their card is in. place that pile in between the other piles and repeat two more times. after that their card will be in the middle of the middle pile, allowing you to reveal it in whichever way you feel works best. 