Here’s a simple trick that will have all your friends at the pub wondering what happened to their finger. First take your hand, either one, and place palm side down on a table or any harder surface while bending your middle finger beneath your hand. With your fingers spread out try raising your pinky, no problem. Now try raising you index finger, well, that one works. Now try raising your ring finger. You can’t. No matter how hard you strain you are unable to pick it up. Tell all your friends you are the next David Blaine and make them buy you a pint.

Actually, the reason your ring finger is unable to move while the middle finger is in that position is because the tendons are connected. Try as you might, that little digit is not budging. Now go amaze all of your friends.