Each party to its own
One woman flitted about with her stole, the other dedicated herself to hugging the latest arrival.
Sofas followed on one after the other as if it were a cinema. As it happens, videoclips were being projected but nobody was taking them seriously, they were watching them distractedly and nobody was asking any questions. 
“Can you say anything reasonable?” one guy asked the person sitting next to him. And he said this pushing his hair back decisively, repeated who knows how many times.
A girl fainted for fun. Someone walked past her and, holding her by the arm, softened her fall, then asked her something similar to the reason why.
A couple was moving excitedly, they wanted to dance rock’n’roll at all costs.
“You too should try dancing rock’n’roll when pop music is playing”.
“It was supposed to be a surprise party and it’s just a big mess”, observed the other.
 “Don’t be a brat, don’t tell me you were expecting a birthday cake?”
“No, but at least the birthday boy, to know who he is and why he’s not bothered about us.”
“You really are childish”. “Why should he be bothered about you and what you do?”
“Ah right, there aren’t any guests here and maybe not even invites”
“You should try to relax”
“I’ll have a drink now to get over it”
“Get over what?”
“This rubbish”
“Wow, what a video! Watch and enjoy, you won’t see another one like this around…”