2. The second is the head movement: the legs are tight, the toes are stretched forward, the back is straight, like being pulled up by a thread, the shoulders are parallel, the head swings 45 to the left, the line of sight is parallel, the chin is not lifted, and it is not pressed down. Keep it level and return to the right.

3. Final shoulder movement: Keep the shoulders level, and don't use shoulder movement to drive other parts. Lift the left shoulder first, then the right shoulder and return to the low position (four beats).