What are the man and woman doing?

M: Did you take these pictures? They are very good.
W: Yes, I think they turned out well too. I like to take my camera with me wherever I go. That way if I see something interesting I can snap a picture of it.
M: Carrying a big camera round is too troublesome for me.
W: My camera is really small though. Let me show you.
M: That is a compact camera. But you really must know a lot about photography?

M: I thought you were going to call last night. I was waiting the whole night.
W: I had intended to. But it was too late when I got back home after meeting my friends.