Facebook Entertainer
You're the guy who only shows up on Facebook when there's a big deal going on, like a party or a Bar Mitzvah, and you act like you're the main event, even though you haven't posted since the last century.
You comment on a post about a Bar Mitzvah like you were the DJ.
You reply to a birthday post with 'I was there, I saw everything.'
You accept a party invite and say 'I'm bringing the vibes.'