The set-up: The distance from your wrist to your elbow is the same length as your foot.The act: First, you looked at one of your forearms and mentally measured it, trying to s... moreThe set-up: The distance from your wrist to your elbow is the same length as your foot.The act: First, you looked at one of your forearms and mentally measured it, trying to see if the above is true in your case. You may have even placed that forearm along your thigh. Then, you looked down at one of your feet, repeated the mental measuring. What do I win?