In Psychology, there are several behaviors that can send & receive nonverbal communication (NVC), a communication without words. Those behaviors including body language, facial expression, eye contact, handshake, and object & appearance. Hairstyle is one part of object & appearance that can reveal his personality. Man's personality can be read from what hairstyle he has, how often he changes his hairstyle, etc. Hairstyle is one signal of personality, so it's important to remember other signals to avoid misread.
Bald Hairstyle
Is bald sexy? Yes, off course. Not everyman dare to get bald hairstyle. If he has an irregular shaped head or scar on his scalp, he won't to reveal it. Go bald is also one of the best ways to hide hair loss, receding hairline, or bald spot. Hiding going bald is a common way. But, if a bald man always hide it everywhere he goes (by using a hat or wig), then he is not proud of himself. He feels insecure and doesn't want people to know his weakness. He will no more attractive than before. Actually, going bald is a normal process for men. Male celebrities who are really proud to be bald including Michael Jordan, Bruce Willis, Michael Rosenbaum, Seal, etc.
Short Tidy Hairstyle
Short hair on a man can be interpreted as diligent, active, dependability, & hard work. Jobs that require active & practical may also require a man to always get short hair. The jobs including sports, military, police, etc.
Change Hairstyle Often
He is an adventurous man who requires courage & has a lot of creativity. He can adapt to a new surrounding easily.
Mohawk & Punk
Commonly worn by youngsters. A man who gets this hair can be interpreted as against the rule & rebellious. He likes to be remembered, to be free, anti-authoritarianism, & has a sense of humor.
High Maintenance Hairdos
High maintenance means styling, dying, ever-changing, & creating artistic hair. High maintenance hairstyle is difficult to be maintained. It requires a lot of money. So, a man with high maintenance hairdo usually has a lot of money. He also give attention to his clothes, shoes, and other appearance. He always follow the latest fashion.
