You don't have to be double jointed to shock your audience with this unforgettable effect. Place your hand on a table, and ask a spectator to follow along with your movements. They will freak out when you suddenly twist your arm around in an impossible way they cannot repeat. Your spectator will be way too involved playing along that they will never figure out the method. Everyone will start to question what other crazy tricks you can do with your arms next. This can be performed to great comedic effect for both close-up and stage shows.
This technique brings a whole new deceptive level to this classic mentalism effect. You grab a book and riffle through the pages, asking the spectator to stop wherever they want. Ask them to circle a small number of words inside the facedown book with a marker. Hand them the book to hold against ...