Present a deck of cards to the spectator and have him shuffle the deck. Afterward have the viewer name two cards without naming a suit. Then place your hand over the deck of cards and tell the spectator you are concentrating on the cards. After you have done this briefly, hand the deck back over to the viewer and have him fan through the cards; miraculously the two cards he chose will appear next to each other.
This trick is basically using probability to its advantage. Since the viewer is not naming a suit, the likelihood that the two cards he names will end up next to each other is quite high. If for some reason it doesn't work the first time, try again, and tell him you need to concentrate harder this time around.
Choose 10 coins with different dates. These can be any amount--from pennies to quarters--but they all must have a different date on them. Place the coins in a hat or bag. Have your audience or spectator confirm that each coin has a different date. Then ask her to pick one randomly from the hat. She will then pass this coin around to each participant so that they can see the coin.
After this is complete you will place your hand over the hat and concentrate on the coin. Put your hand in the hat and pull out the warmest coin, which will be the one that was passed through the audience. Heat transfer from the people to the coin will leave it warmer than the other coins, giving you the ability to guess the right one.
Take an empty paper or Styrofoam cup. Place a small piece of double-sided tape to the backside of the cup. Hold the cup in both hands and tell your audience you are going to concentrate on the cup and make it float. As you are concentrating, push your thumb against the sticky tape and remove your fingers from the cup at the same time. Push your hands slightly forward so it appears as though you are following the floating cup. After a few moments close your hands back around the cup and discreetly remove the tape with your thumb.