Open your feet, stand up straight, bend your right leg, straighten your left leg, move your center of gravity to the right, and look at your left foot, alternating left and right. Practice holding the wall upright for 3 ~ 5 times on each side, with your feet spread back and forth, your hands shoulder width apart, holding the wall, leaning forward, your arms sticking to the wall, alternating left and right. Practice holding the wall with both hands, knees facing the wall, 3 ~ 5 times on each side, right arm straight, right hand holding the wall, left leg bent.