Start with your hands to your side and your head facing forward (chin up). Dip down by bending your knees and keeping your chest up.  Jump and lift your arms straight up by your ears. Your chest should remain up, but can also dip slightly back. Right before you hit the top of your jump, tuck your knees to your chest by squeezing your abs, and swing your arms up and around until they hit your legs.  Now wrap under your knees and squeeze.  When you see the ground, open up your chest and begin to open your tuck.  Finish by sticking your landing by squeezing your feet together, squeezing your abs, and placing your arms to your side in fists. (NOTE: If you are a beginning at this skill, always have a certified spotter and trainer on hand for safety reasons).