Group A(Persona1): Dude, doosh, you're making so much noise!
Group A(Persona2): Don't you mean, 'shoosh'? Haha.
Group A(Persona1): Haha, whoops. Oh well, that can be our thing.

(Person from group B overhears)

Group B(Persona1): Hey dude, 'doosh!' Haha.

Group A(Persona1): You're so climbing into Doosh; that's between me and Jeremy.

Or

Group A (Persona1): I LOVE Fort Minor - Mike Shinoda is a genius.

Group A (Persona2): Me too. Lots of great songs.

Group B (Persona1): Oh ya! How about those instruments? (Originally uninvolved in the conversation and not a Fort Minor fan as such)

Group A (Persona1): Sounds like a bit of climbing in over there.