simple tric kwith deck of cards

Effect:
The magician picks one person for the trick. The one person picks a card, remembers the card, and puts it back in the deck. You search the deck and find the card. Watch as the jaws drop.
Supplies:
Complete deck of cards.
Preparation:
Make sure all of the cards are one way
Flip the bottom card upside down so if you flip the deck over it looks like the top.
Performance:
When they are looking at the card you flip the deck over
since you already flipped the bottom card over it will look like the top of the deck
when they put the card back in it will be the only one flipped that way.