“The best packet trick of the 20th century.” – Eugene Burger
Prediction of a thought of queen, with a three phase revelation.
You bring out four cards and ask your spectator to name any queen. You then cleanly spread those four cards on the table. The only face up card is the chosen queen. Then you turn it over and its back is a different color than from the rest of the cards. As further proof that you already knew queen they would say, you turn over the rest of the cards and they are all completely blank.