I can do a pretty neat card trick. At the end , i can guess what card you have just by looking at it once in the beginning. Not your card, the card you picked without me looking at the beginning of the trick. ;)
The cards must be slick. I shuffle a new deck,then look at the bottom card. A person picks a card and I have them place it on top. I shuffle again,but on the first one I quickly slide the bottom card to the top and continue shuffling, making sure the two always remain on top. I then spread the deck and pull out their card.
Had a friend who was out for a drive with his girlfriend at the time. She told him that she could turn him into anything that she wanted to. He said "No Way!" So to demonstrate she leaned over to him and whispered something into his ear. Darned if he didn't turn into the parking lot of the very next motel that they came to. Now that's some magic trick!