a person who keeps company with others or another, a companion; spec. (a) a person who socializes, esp. regularly, convivially, or boisterously; a…

A person disposed to seek and enjoy the company of others; an affable, friendly person. Also: a socialite.

Originally U.S. A person in respect of his or her capacity, desire, or tendency to mix socially with others; frequently with modifying word, as good…

= extrovert, n.

A person given to or characterized by extroversion; a sociable or unreserved person; also transferred. Also attributive or as adj.