It turns out that FISM winner Yu Ho JIn is quite the Casanova, as shown in this simple pick-up trick. Fun? Yes. Classy? No. But for the right audience and right performer, this might be a winner.
Show your spectator that you are holding three Aces. Ask them to keep an eye on the Ace of Hearts. Turn the cards face down and they remove the Ace of Hearts. Magically, when they turn over the Ace, it is now just a blank card with your phone number on it or any message you like!