If she is a person who doesn't want to take the postgraduate entrance examination, she will surf the internet in the dormitory, watch movies and chat online, visit online shopping websites and learn how to match clothes. She will wash clothes in the dormitory and chat with her roommates after work.
If she is a studious student with clear goals, it is estimated that she will spend all her spare time in the study room. Back to the dormitory, she will wash and lie down, ready to rest. If there is a topic in the dormitory, she will occasionally strike up a conversation.
If she is a smart girl with good academic performance, but has never seen anyone who studies often, then she is usually the most fun in the dormitory. Before washing, I will definitely think of something interesting or try to eat something I haven't eaten. I will tell the dormitory about her previous good and bad fantasy experiences.
After turning off the lights, just play with your mobile phone and have a rest after chatting.
I guess you also want to know what they talk about. They will use their mobile phones to check the horoscope of everyone in the dormitory or some psychological tests that interest them. There are also some gossip about which couples in the class are more optimistic and which ones are less reliable. Or who might be with whom. Or discuss what a roommate's prince charming did today, and imagine how this roommate can win her prince charming.