Wedge your balance ball in a corner (you want it stable, so it doesn't move). Lie on your back and put one foot (the heel) on the ball, raise up from your hips and lift the other leg straight up in the air. Lift and lower your leg (about 5 or 6 inches) You will never come all the way down, you will be raised from the ground (your butt/hips) the whole time. You will pretty much feel it immediately so you will know if you are doing it right! It is a really great butt workout!!!