Here's another card trick from www.vanishingincmagic.com; your spectator's card will magically turn over in the deck! After you're done, you know what to do - complete our survey for activity points!
Before you begin, secretly turn over the bottom card of your deck so it’s the only card facing up.
Spread the deck and allow the spectator to select a card (being careful not to expose the face up bottom card). Tell them to remember the card and show everyone without letting you see.
While they do this, casually turn the deck over in your hands. This leaves all of the deck face up in your left hand, except the top card.
Keeping the deck tight to avoid exposing the fact the cards are reversed, place the spectator’s selected card face down into the middle of the deck.
Put the cards behind your back and exclaim you’re going to find their card without looking. Secretly turn over the top card so it’s facing up.
Bring out the face up deck and fan through until you come across the only face down card. Slowly reveal it is the selected card.