First, we should stand up straight, with our fingertips pointing to the ground, and then our knees against the floor. Stretch your instep and then tighten your body. This is our basic sitting posture. Then the second step is to hook the foot, push back through the heel, the toes become sharp, and forcibly hook back to the stroke. It is zigzag, so at the same time, the inside of the knee should be kept close to the floor. The third step is to push the chest and waist to bend the body. Finally, we should touch our toes with our right hand. Then try to stand up.