You can pinch your hair roots with an ironing board, which is the kind of thin wave ironing board. Pray to pad the function of hair roots and increase the thickness and air sense of hair.

Then comb out the stubble with a wooden comb, which will be more fluffy and higher;

If the hair is too thin, you can pad it with a curling iron, which is more natural, but it is only suitable for curly hair, and the top is suitable for spreading.