•Many of them never meet Gatsby, and most were not invited.
•But Nick is invited--via Gatsby's chauffer.
•He meets Jordan at the party, we're reminded she is a golfer, and everybody gossips about the mysterious Gatsby and how he might be a murderer or in the CIA or something.
•(Well, probably not the CIA, founded in 1947. But you get the point.)
•Nick wanders into the library (you can tell he's not a big party aficionado) and meets a man with owl-eyed spectacles who is in awe that all these books are real – pages and everything!
•Owl-eyed man also utters one of the famous Fitzgerald lines: "I've been drunk for about a week now, and I thought it might sober me up to sit in a library."
•Back outside, Nick meets an unknown man who gives him the old "you look familiar" line. They chat about having both been in the war (WWI).
•Turns out, the mysterious man is the mysterious Gatsby. Who'd have thought? Certainly not Nick, who expected Gatsby to be older than him. (Nick's about 30.)
•Gatsby leaves to take a phone call, and later sends his butler to get Jordan for a private chat.
•Inside the house, Nick watches a woman with red hair singing along to a piano and weeping black mascara tears.
•Everyone is fighting with his or her spouse. The men are mad because they're not being allowed to talk to the hot young things, and the women are mad because their husbands are trying to talk to the hot young things.
•Presumably the hot young things are enjoying themselves just fine.
•Jordan comes back from the chat with Gatsby; she taunts Nick (and us) about the "tantalizing" news without revealing any of it. She then tells Nick to come and visit her at her aunt's house.
•Gatsby says goodnight to Nick with his signature "old sport" usage.