Why does the man look so tired?

W: How are the things with you?
M: I’m just taking one day at a time.
W: How come you look so tired?
M:(1)Because my roommate stayed up to play computer games, I couldn’t sleep with that noise.
W: That’s a common sense. At college a growing number of students apparently don’t know the way which makes their college life more rewarding.
M: That sounds reasonable. That’s why many students are addicted to computer games. And what’s your opinion about making college life more rewarding?
W: From my viewpoint, we are supposed to make a plan to broaden our horizons and explore our intelligence, so that we can enrich ourselves and have a substantial life.
M: Make a plan? That’s a good idea. Can you explain the precise details about what we can plan?
W: About daily study, we can make a clear plan and then achieve this goal step by step.(2)Outside school, we can do some volunteer work to enrich our college life. Meanwhile the university campus has excellent exercise and recreation facilities, and we can make full use of them. What’s your opinion?
M: In my opinion, there are many ways in which we can obtain much information and knowledge.(3)For example, we can watch some classic movies, so that we are able to practice our pronunciation. Also we can listen to some music to relax ourselves.
W: I agree. Oh, it’s late. I really enjoy our talk, but I need to go now.
M: It’s too sad that you have to go. Hope we can get together next time.
W: OK, bye!
M: Bye!