Flat stone skimming, also known as stone skipping, involves throwing a flat stone across a body of water to make it bounce. The key to successful skimming is to choose a smooth, flat stone and to throw it at a low angle. The ideal angle is typically around 20 degrees, which helps maximize the number of skips. To achieve more skips, the thrower should use a flicking motion of the wrist while maintaining a steady arm. The speed and spin of the stone are also important; a faster throw with a good spin increases the chances of multiple bounces. Practicing these techniques can improve one's skimming skills.