He is a very timid person.

Timid : showing a lack of courage or confidence; easily frightened.
Dashing : (of a man) attractive, adventurous, and full of confidence.
Outgoing : friendly and socially confident.
Bold : (of a person, action, or idea) showing a willingness to take risks; confident and courageous.
Chivalrous : (of a man or his behaviour) courteous and gallant, especially towards women.

Antonym of Timid is Bold