EFFECT: The Magician spreads the cards in his hands and asks a spectator to select a card. Spectator memorizes the card, and gives it back to Magician, who puts it in the deck at a random place. The Magician counts off cards from the bottom and then stops. Magician holds up a card: the spectator's!
PREPERATION: You can count any number. I always use nine, ten, or thirteen. When you spread the cards in your hands, you have already counted the number you need. Push the rest of the deck up a bit so the counted cards stick out lower (so you recognize them) from the rest. When the spectator gives you the card, put it on top of the counted cards, and the rest of the deck on top of them. Then count out the number you already counted (e.g. thirteen.) The fourteenth card will be the spectator's.
You can also count cards from the top of the deck, if you like. In this case, have them return their card onto the other (larger) part of the deck, then set the smaller pile onto these. Count down from the top, and reveal their card.
Next: Teleporting Cards