Never Kill a Boy on a First Date (Season 1, Episode 5):

The door opens and Angel comes in [The Bronze].

Cordelia: Ooo! Hello, salty goodness! (to her friend) Pick up the phone, call 911. That boy is gonna need some serious oxygen after I'm through with him.

She starts to follow Angel, but stops when she sees him go over to Buffy.

Angel: Buffy.

Buffy: Angel.

Cordelia: (to herself) Why is this happening to me?

Angel: (to Buffy) I was hoping I'd find you here.

Buffy: You were?

Angel: Some serious stuff happening tonight. You need to be out there.

Buffy: No, not you, too. (tries to leave)

Angel: (stops her) What do you know?

Buffy: Prophecy, Anointed One, yada, yada, yada...

Angel: So you know. Fine. I just thought I'd warn you.

Buffy: Warn me? You see that guy over there at the bar? (walks around him and faces Owen) He came here to be with me.

Angel: You're here on a date?

Buffy: (turns to Angel) Yes! Why is it such a shock to everyone?

Owen: (returns) Here you go.

Buffy: Oh. (looks between Angel and Owen) Um, Owen, this is Angel. Angel, this is Owen. (puts her arm around him) Who is my date.

Angel: Hey.

Owen: Hey! So. Where do you know Buffy from?

Angel: Work.

Owen: (to Buffy) You work?