There would be no dialogue.<br />
All the kids would be looking down at their phones and texting each other.
I think BamPow is correct. They would not text each other because none of them would have or care to have each other's phone #. The room would be silent except for ocassional blurts of laughter or a student who actually answers a few calls and loudly talks while oblivious to library or mobile phone etiquette. At least one student would be blaring hip-hop with or without headphones or earbuds. The only reason any of them would interact with each other is if someone was like, "Oh my God you have to see this YouTube video!"
Oh gawd..if this were to be a movie..there wouldn't be a movie, lol.
Ugh, have you seen Molly Ringwald lately?
Something about this question makes me :(