Open your feet at 45 degrees, relax your arms and squat, and raise your hands above your head when you stand up. This action is repeated 20 times.

Step two:

Spread your feet a little and do it with your legs. Then the left foot should have a "push" action, and the right hand should touch the ankle. Repeat 20 times.

Do it again in the opposite direction and be careful to "push". Or repeat it 20 times.