'Yeah, she's been around quiet a bit lately.'
Lurkers often lurk in packs, to show their fellow lurkers their lurkees, and to show off their taste in lurkees.
-They don't know what to say
-They are pretending to have friends
-They are trying to scare you
-They are there just to be seen with you, as if they have some kind of relationship with you.
Person 2: The lurker. He shows up everyday, just ignore him.