Amy: You know, I could use an engineer on this project.
Sheldon: Well, now, this works out great. Howard's an engineer. I'm sure he knows someone qualified.

Howard: She was talking about me, Sheldon. I'm perfectly qualified.
Bernadette: Yeah, Howie's the world's best engineer. It says so right on his coffee mug.
Penny: Aw, you got him a mug?
Raj: I did. But it's not a competition.
Bernadette: Yeah, I lost that battle years ago.

Amy: So, Howard, are you interested?
Howard: Are you kidding? If I could control robot arms with my brain, I'd be able to do so many things.
Sheldon: Really? Because you've been controlling human arms with your brain for years and not much has come of it.

Penny: Bernadette left it here.
Leonard: Yeah? Anything interesting?
Penny: Well, I just saw a picture of a baby's head crowning, so I hope you enjoyed sex, because we're done with that.

Leonard: Hey, Sheldon, what's up?
Sheldon: Well, remember how disappointed you were when Amy started driving me to work?
Leonard: Sure, uh, sometimes people smile a big smile of disappointment.
Sheldon: Yeah, well, good news, Amy had to go in early to show Howard around her lab, so you get to drive me.
Penny: Aw, his smile of disappointment has turned into a frown of joy.

Leonard: It's fine, I've been driving him for years. What's one more day?
Sheldon: Oh, and I've got a new car game we can play. It's called "What siren am I?"

Howard: Amy, your lab is amazing. A C-arm fluoroscope, a cranial ultrasound, (gasps), and look at that coffee maker!
Amy: I know. On our expense report, I listed it as "Eduardo", my Colombian lab assistant.

Howard: So this is it?
Amy: Yes. We are using it to map brain wave patterns and then converting them into electrical impulses that can be used to control anything from wheelchairs to robots.
Howard: Based on that ring on your finger, I'd say you're pretty good at controlling robots.
Amy: Careful, that's my fiance you're talking about. And I can program him to hurt you.

Sheldon: (imitates a siren wailing)
Leonard: I don't know. Uh, French police?
Sheldon: Oh, so close. Belgian ambulance.

Sheldon: All right, you ready for your next one? Just a warning, this one's a little annoying. (imitates a high-pitched siren)
Leonard: Let's take a little little break, I'm getting a headache.
Sheldon: Aw, right in the middle of our fun game.
Leonard: Yeah, weird.

Leonard: So Howard and Amy working together, that's interesting, huh?
Sheldon: Eh, it's all right, I suppose. Uh, when- Usually when Amy complains about her coworkers, I just tune her out, but now I'll be able to join in and pound away.

Leonard: You're not jealous of Howard, are you?
Sheldon: Of course not. The only engineer I'm jealous of is the one who blows the train whistle. Ooh, that just gave me an idea for a new game, "What whistle am I?"
Leonard: Train.
Sheldon: For your information, it was going to be tea kettle, but the tea kettle was on a train, so I'll give it to you.

Howard: If we add phase detection to your EEG sensors, I'll have to rewrite most of the code.
Amy: Can you do that?
Howard: Well, these hands were made to do three things: close-up magic, writing code, and the dirty shadow puppet show that got me kicked out of Hebrew school.

Amy: What's with the blinking?
Sheldon: It's Morse code. So we can talk about without hurting --'s feelings.
Amy: Sheldon, I don't know Morse code.
Howard: I do. And if you have something to say, you can say it to my face.

Sheldon: She's going to be home at "eight-ish." Like, when is that? 8:01? 8:02? And what kind of scientist uses "-ish"?