Have anyone heard the girl in the restaurant near Niko's first apartment say "I dropped it in the kitchen." or the man at the burgershot, he always says "welcome to burgershot, motherf*cker" or what he now says, he always says something like that.
A ped also called me "noob" when I walked into him.
I find most of what Pegorino says in his first and second missions hilarious, because of how constantly angry he is and half of the time he sounds like Joe Pesci. "WHO LET THIS PRICK DRIVE?"
I don't hear it often, but a guy in traffic sometimes yells, "BEEP BEEEEEEP!" And he imitates the pitch of a car horn perfectly.
When Francis says, "And the moon is made of cheese, and the streets is paved with gold!" It's how he says it; his voice is so nasal and high-pitched normally he actually sounds like an excited little kid, and like he's trying to specifically imitate Fievel from An American Tail.