Earlier, we taught a "monte" style effect. Here's a version of the Monte that only uses two cards.
You show two cards and then remove one and place it behind your back. When the spectator guesses the card that you took, he is always wrong.
Secret: This one involves some preparation of the cards as well as a little move that I will teach you.
Materials: You’ll need four playing cards and some glue. For this, a glue stick works well.