-enters lecture with friend- Me: Hey, is anyone sitting here?
Kristina: Nope, go ahead.
Me: How are you -blah blah blah-
Kristina: blahblah blah
Me: This is my housemate, Melanie. Melanie, this is my friend Kristina.
Melanie: Hey
Kristina: hii!
Me: -looks at kristina- Yeah, we go wayy back (we met last week)
Melanie: Oh really?
Me: ya
Kristina: -giggles-