2. Turn on a small wind with a hair dryer and start blowing down when it is wet and dry, as shown below.

When blowing, you can't press your hair down with your hands. Be sure to rub your hair in a rotating way, as shown in the figure below.

4. Repeat the above steps on the other side, as shown in the figure below.

5, blow on both sides, see the effect, so that the hair on both sides is obedient, as shown below.