Leonard: Should've punched that guy.
Penny: Well, go ahead. He's right over there.
Leonard: Why do you do that? Can't you let me have my moment?

Guy: Hi. I like your movies.
Penny: Thank you!
Guy: I saw both of them.
Penny: I assume we're still talking about the movies, but after today, who knows.

Raj: Hey, show her the trunk! Show her the trunk!
Howard: Imagine this: you've got the baby in one hand, groceries in the other, and you're thinking, "How am I gonna open this trunk?"
Bernadette: I'm probably thinking, "Where's my husband, and why isn't he helping me?"
Howard: You don't need my help when you can open the trunk with a simple kick of the foot.
Raj: No, it's a gentle kick; you're doing it wrong.

Mrs. Petrescu: My sister's husband took all her things, too. Story at 11:00.

Guy: But how did you get her to go out with you?
Leonard: Well, she moved in across the hall.
Penny: And he started to slowly wear me down.
Leonard: Mm-hmm. Like a river carves a canyon.
Penny: Yeah, except the river kept showing me his Pokemon cards.

Howard: If childbirth is half this bad, you are so screwed!

Sheldon: You know, in fact, I'd like to propose a toast. To Stuart. A fine man, a good friend and a wonderful guest.
Bert: Hear, hear.
Amy: Cheers.
Mrs. Petrescu: Cheers. Filmed before a live studio audience.

Guy: I didn't know you can propose to the same person so many times.
Leonard: The third time, I did it in skywriting, but she never looked up.
Penny: You know, once, I proposed to him.
Leonard: Yeah. I said no.
Guy #2: Why?
Leonard: I just wanted to make her work for it.
Penny: Yeah, that's gonna cost you later.

Sheldon: Hit it.
*Howard playing keyboards and Raj playing guitar*
Howard: (Singing) For joy and fun, there's no better manner, than to fly a pennant, flag or banner
Raj: What fills my heart, and makes my eyes moist, sending a flag, up a pole on a hoist.
Raj & Howard: Fun with Flags, Fun with Flags
Howard: Oh! Say can you see.
Raj: It's Fun with Flags.
Raj & Howard: Fun with Flags.

Amy: As you may notice, just one of the changes around here is our new house band.
*Howard plays a keyboard solo*
Sheldon: Who haven't learned their place yet.

Bernadette: Well, they finished the work early, but she's been telling Sheldon they're behind schedule.
Leonard: So, she's just been lying to him?
Penny: Well, you've lied to Sheldon.
Leonard: Yeah, but to make him leave, not to make him stay.

Amy: So, uh, what about dinner?
Sheldon: Is it me or are you purposely changing the subject?
Amy: No. And on the subject of subjects, is your use of the word "subject" the same or different as when we speak about the subject of a king?
Sheldon: I have a feeling you're still doing it. But I find that topic irresistible, so, now, in ancient Mesopotamia, the king referred to the people as his property.

Leonard: You really didn't think I'd notice my stuff was missing?
Penny: Uh, did you notice your key chain?
*Leonard goes to the door and checks his keys*
Leonard: Where's Batman?!

Raj: I'm not really a part of this, so I'm just gonna dig in.

Raj: Now that everything's out on the table, you think you two will keep living together?
Sheldon: Despite recent events, I do consider our experiment in cohabitation to have been positive.
Amy: Are you saying you'd like to live with me?
Sheldon: I'm open to the possibility.
Amy: (gasps)
Penny: Amy, b-be, b-cool.