Can you explain the parts [(number) ... ]?


Howard: All he has to do now is hook up with one of them. (They look at Dennis, who is picking his ear.)
Leonard: Does anyone else see the flaw in this plan?
Raj: We need a social catalyst.
Leonard: Like what? We can't get fifteen year-old girls drunk.
Howard: Or can we?
Leonard: No, we can't.
Howard: I don't think you mean we can't. I think you mean we shouldn't.
Sheldon: Hey, Howard. You're a Jew. [(1) If there was another wailing wall, exactly like the one in Jerusalem, but close to taco stands and cheap prescription drugs, would you still be able to wail at it?] Okay, [(2) it's definitely me.]