1. Don't sit when you try the hat.
Sitting in a hat often try not to effect, so mm best stand wearing a hat, can see the overall effect.
2, the test hat with the floor long mirror
It is not a good way to wear a hat on a small mirror.
3, the top of the head to touch the cap
Hats can not be too loose or too narrow, to the top of the head to meet the hat is appropriate, if not only uncomfortable to wear it is not.