Other forms: palm readings
If you've had a fortune teller predict your future while gazing at your open hand, you've experienced palm reading.
Palm reading, also known as palmistry, is a fortunetelling technique that involves evaluating the shape of the hand as well as each individual line and crease on the palm, and predicting the future based on that information. If you learn to do palm reading for your friends, you'll find their "life line," "heart line," and "head line," predicting what their future careers and romances may be. Scientists, of course, consider palm reading to be just a party trick.