Ruth: You're in great shape, keth?
Keth: Thanks. I guess I'm a real fitness freak.
Ruth: Well, I do aerobics twice a week. And I play tennis every week.
Ruth: Tennis? That sounds like a lot of fun.
Keth: Oh, do you want to play sometimes
Ruth: Uh, ...How well do you play?
Keth: Pretty well, I guess.
Ruth: Well, all right. But I'm not very good.
Keth: No problem. I'll give you a few tips.