Things You'll Need
Instructions
Glue the faces of two cards together so that it looks like there is one card with two backs. This is the trick card.
Place the trick card in your own wallet before the spectators arrive.
Shuffle the deck several times and then fan the deck face up. Have a participant pick one of the cards.
Mark the card the participant chose with a pen. You can sign your name or use any other marking you wish.
Gather the other cards together into a neat stack and slide the marked card into the middle of the deck. Continue sliding it through the deck and discreetly move it to the top of the deck without the audience noticing. This is the part of the trick that will take the most practice.
Place the deck in front of you and the participant, tap the top of the deck and tell him that the card will jump onto the top of the deck from your wallet.
Open your wallet, remove the trick card and place it on top of the deck. Make sure that the participant doesn't see that it is a double-sided card.
Grab the trick card and the card underneath it. Reveal the face of the marked card to the participant.