1. First, put your hand on the handlebar, as shown in the following figure:

2. Then gently open the elbow joint in the red box, as shown in the figure below:

3. Knees and feet should be parallel when riding, as shown in the following figure:

4. Then when the sole moves from top to bottom, it is push and pull, as shown in the following figure:

5. After push and pull, trample to form a cycle, as shown in the figure below: