A：Mary, what’s your favorite sport?

B：It’s hard to say. I like volleyball a lot, but I guess I like tennis better.

A：Are you good at it?

B：Yes, quite good. How about a game sometime?

A：Sorry, I just like to watch almost all kinds of ball games. I’m strictly spectator.

B：You mean you never do anything yourself?

A：Well, I only like to do some jogging in the fresh morning air.

B：Ah, you are an early bird then!