2. Choose curved eaves for round faces, straight eaves for long faces, and choose whatever you like.
3, black and white gray, the more solid the hat, the more versatile it is. The same hat can bring different styles.
4. Baseball caps generally have a long brim, and the distance to take selfies is too short and too close to the brim, so it is not easy to take a good look. It is best to shoot in front of the mirror, automatically shutter, or find a small partner.