2. A Card Game

A: Let's play cards.

B: I don't know any card games.

A: I'll teach you one.

B: Okay. What will you teach me?

A: It's called poker.

B: Is it easy to learn?

A: Yes, it will only take about 30 minutes.

B: Okay. Teach me how to play.

A: We each get five cards.

B: Oh, look. I have four tens.

A: That's great, but you're not supposed to tell me.

B: Oh. Sorry. Okay, I don't have four tens..