Sebastian Stan (Carter Baizen) previously appeared in "Bad News Blair".

We learn Serena's full name is Serena Celia van der Woodsen and Blair's full name is Blair Cornelia Waldorf.

Presenter: Ms. Van der Woodsen hopes to bed as many billionaires as she can and settling down to --
(the presenter stops reading after realizing what she had said; the crowd laughs)

Rufus: Little overdressed for an art show, don't you think?
Dan: Dad, listen. I've been meaning to tell you. I'm sorry.
Rufus: Don't worry about your mom. I'll take care of it.
Dan: You don't mind?
Rufus: No.
Dan: I thought I'd get grounded when you found out, just like Jenny was. But, I gotta admit, it would be worth it.
Rufus: I don't mind at all. Tux looks great, shoes look great, you look so great. You're going to make me proud. Show that Celia Rhodes what us Humphrey men are made of.
Dan: What's going on, Dad? You're doing that thing again when you act really weird for no reason. It's kind of freaking me out.

Carter: Nate. Look, I was hoping to see you, I wanted to apologize, put the past behind the past.
Nate: You don't get to say what goes on here. I'm on to you.

CeCe: Do you like it here, Mr. Humphrey?
Dan: Looks a little bit like a museum, little cold. Although, the water pressure is unparalleled.
CeCe: That's not what I meant. But, of course, you would make a joke that goes to my point.
Dan: Excuse me? Did I miss something, here?
CeCe: Oh, yes. The way you feel -- it never goes away. It just gets worse.
Dan: I'm sorry, I don't quite --
CeCe: You will always use your dessert fork for your entrée. You will always feel under-dressed, no matter what you wear. At dinner parties, there will be difference; there a language that sounds like English and you think you speak it, but they don't hear you. And you don't understand them. As time passes, you'll feel like people never see you when they look at you, but wonder merely whether you're Serena's whim or her charity case. Until the day comes when you realize that girls like Serena don't end up with Dan Humphrey. They end up with the Carters of the world. And people like you, they turn to cocktail party anecdotes of their foolish youth. So, why don't you give it up and spare yourself the pain, hmm? I'm sure Serena will understand.
Gossip Girl: (voiceover) This just in -- we hear there's a cold war brewing between Lonely Boy and a certain blue blood. We never thought we'd say this ourselves --
Serena: There you are. What's going on?
Dan: I'll tell you what's going on. I just became your escort to the ball.
Gossip Girl: (voiceover) But our money's on Brooklyn for the win.

Allison: Hey! I uh, went thrift store shopping. And I found some great stuff! I got you some black vintage pumps. They're gonna go perfectly with the dress you're gonna wear at the opening.
Jenny: Mom, the kids I go to school with shop at Saks and Bendel's. I can't be walking around in someone's old shoes.

Rufus: You're back. What happened?
Dan: Uh, CeCe won.
Rufus: She has a habit of doing that.

Episode Title: Hi, Society

The episode title refers to the 1956 film High Society.

Nate: I just don't get it. I organized everything the way she likes it. I mean, I even made sure my bow tie matched her dress.
Chuck: Like the book says, "She's just not that into you."

Chuck is playing on the title of Greg Behrendt's hit best-seller, He's Just Not That Into You: The No-Excuses Truth to Understanding Guys.

Carter: No, I stayed at the Palm Island.

Carter is referring to man-made islands off the coast of Dubai in the United Arab Emirates.

Carter: Nate. Look, I was hoping to see you, I wanted to apologize, put the past behind the past.

Carter was referring to the card game that he played against Nate in "Bad News Blair".