Do It Yourself Discovery
Effect: The spectator discovers his own card in a mysterious manner.
Have the spectator shuffle the cards, take half the deck and give the rest to you. "Now," you say, "while I turn my back, pick out a card, look at it, show it to everybody, and put it back on top of your pile."
Turn away and secretly turn the bottom card and the second card from the top face up.
When the spectator is done turn back. Tell the spectator to hold out his cards and place your pile on top of his. Even up the cards, and then direct him to place his arm behind his back saying, "Now I want to perform a little experiment with the cards behind your back."
Make sure that no one can see what happens behind the spectator's back and that he does not bring the cards forward. Say this to the spectator: "Take the top card ... no, put that onto the bottom, so that you know I'm not trying to fool you.
"Have you done that? All right take the next card, turn it over, and stick it in the middle. Even up the cards."
Have the spectator bring the cards forward. Take the deck and run through the cards until you come to the face up card. Ask the spectator to name his card. Turn over the next card. "As you can see you located your card yourself."
Tips: once in a great while the spectator will stick the card between the face up card and the chosen card. When you turn up the wrong card simply say: "You missed it by one," and turn up the next card.