Thumb method: Hold gently with both hands and four fingers, with two thumbs straight and inverted eight-shaped, and the index finger joint is gently attached near the cheekbones; Thumb up, one centimeter at each end of your mouth, and gently pull the corners of your mouth obliquely upward; Repeat it many times to find a satisfactory position.
Forefinger method: Hold your fists lightly, and the two forefingers extend outward in an inverted figure of eight. Place them at the corners of your lips, and gently pull them diagonally above the corners of your mouth to find the best position.
Double finger method: thumb and forefinger of both hands are extended, and the other three fingers are gently held together; Put your thumb under your chin; The inner surfaces of the two index fingers are placed at the corners of the mouth and gently pushed obliquely upward; Repeat it many times until you are satisfied.
In the process of practicing all kinds of smiles, you will find the smile that suits you best. Find the smile angle that suits you best and practice it again and again. This stage is to find the "most beautiful self" and exercise your smiling muscles. Usually this kind of training will soften the whole appearance.