Tami : Hi Clàudia, You look worried. What's the matter?
Aufa : Er.. it's nothing.
Tami : Is it the exam tomorrow? You shouldn't worry. You'll pass easily.
Aufa : I know. Tami : Come on, tell me. What are you worried about?
Aufa : OK... it's Mark. I think he has started smoking. I was talking to him yesterday about this topic and he toldd me that he isn't smoking.
Tami : That's serious. What are you going to do?
Aufa: I'm not sure. I should tell someone. What do you think I should do?
Tami : If I were you, I'd speak to his older sister. She's really friendly.
Aufa : I've never met her. Can you come with me?
Tami : Yes, of course. Let's go and find her.