Feet are bigger than shoulders. When the left hand is akimbo, the right arm is straight up close to the ear, the right leg is arched and the left leg is straight.
Stand straight and bend your upper body to the left. Change direction is the same as above.
3 feet are shoulder width apart, the lower body does not move, and the upper body swings back and forth.
Do 3-5 groups at a time, with 20-30 in each group.
Pay attention to diet before and after practice, and don't eat for at least an hour before and after practice. No eating for two hours before going to bed!