As used by David Blaine.
You ask the spectator to simply think of any playing card in a deck. This is a TOTALLY free choice!
On naming their card, you find your deck of cards, empty them from their case, and run slowly through the cards right in-front of the spectator.
Whatever their card was, it will appear FACE-UP in the deck, and will also have a completely different colour back!
This works EVERY time, which ANY card.
This one is a real stunner, and is practically self-working due to the way the deck of cards is gimmicked.
This is easily suitable for the beginner, and is used by many professionals world-wide.