X-Ray Vision

You borrow a deck of cards, have a member of the audience shuffle the deck, have another spectator cut the deck into three piles.  But with your X-Ray vision, you are able to see through the backs of the cards to name the top card on each pile.  Remember, this is a borrowed deck that has been shuffled by a spectator before it is cut.

You can also view this trick on YouTube at https://youtu.be/x37v_32MPh4

You can see all the previous magic lessons here.