Watch Magic Reveal Before You

There’s a really neat trick you can do ( I got it from the movie The Illusionist) where you take a small object, like a rubber ball, and tell someone to hold it to their forehead, without looking at which hand they put it in. Wait 5-10 seconds, then tell them to put their hand down. Turn around, and whichever hand is paler is the hand concealing the object. It’s worked every time for me, and no one in my family can figure it out. They’re pretty amazed with it, and my uncle is a mechanical engineer who loves physics, if that says anything.