Lets Face It by Ronjo

Show a group of red cards and a group of blue cards. The spectator gets on color, you keep the other. They remove one card and you place it in your packet face up. You give them one if your cards and they place it in the pack face up. The cards MATCH! But they will think they all match. Not so. Turn over all the rest and they are blank. No Skill! No gimmicks!