Faux-miliarity
When someone one doesn't know greets one as a friend, and the other party does not dispute the mistaken identity.
Person One: Hey, how's that new job working out for you?
Person Two: Uh... it's... great?
Person One: That's awesome! Give me a call sometime.
Person Two: Sure... big guy... See ya later.
Person Two: Uh... it's... great?
Person One: That's awesome! Give me a call sometime.
Person Two: Sure... big guy... See ya later.