An interesting person who's biggest talent is to make friends/contacts in all sorts of circles and whatever the circumstances are.
A person whose first impression is well liked by almost everyone.
Person #2: "Rob? Yeah, everybody knows Rob! He's a really nice guy...he's a typical friendmaker!"
Billy Bob says: hey baby you finally got Facebook? I completely love you and I can't wait to meet all your other hot friends that we have ridiculous orgies with.