Cas turns on his phone and pulls out his earbuds. He starts listening to music.
Cas notices Ren but completely ignores him
(Bai)
Cas: ...Ugh...
He takes out his earbuds and puts his phone away, walking over to Ren.
Cas: I still don't like you...but I'm bored so-hey.
Cas: Cuz I don't...know anyone else. Plus I keep getting weird looks...
(Bai!)
(Well hello again!)