First comb your hair smoothly and divide it into bangs. The angle between the hair root and scalp is pulled up to 60 degrees. Then hold the hair roots with a circular comb, blow them hot with a hair dryer, then cool them for about 3 seconds, and then remove the circular comb.
Finally, after removing the circular comb, push the bangs back. After a little tidying, use a hair dryer to blow the hair roots of the separated parts slightly, and hold them up and fix them.