The posse is a person in the Artist hangout. It is scenery, plural-named and proper-named. The printed name is "Gus's posse". The description is "When you're famous, you get all kinds of mindless drones following you around doing nothing but sucking up to you. It's so lame and childish. And so unfair that [italic type]you[roman type] don't have a posse. Yet."
Understand "group" and "gus's" and "drones" and "gang" as the posse.
Instead of talking to the posse:
say "They ignore you. Gus is the only person worth talking to in their little world."
The hint list of the posse is the table of no importance.