In a place like a library, there are rules against making noise, but some people just don't listen to advice and insist on making noise in the library, such as making phone calls. In fact, most people get a call to go out to play, or whisper in the library and then hang up. Some people want to make a phone call directly indoors, and their voices are not convergent, which makes people very disgusted.
Occupy a seat
What I hate most is occupying a seat. Some college students don't go to the library for self-study for half a month, but they put a lot of books on the desks of the university library. The key is that some people occupy not only one seat, but also a row of seats. And in some places, a note will be specially left, which reads: This person has something to do. Come and study!
waste
Although most university libraries have work-study students who clean the library regularly, I personally feel that it is inconvenient for most people to leave a lot of garbage on their seats. Some students caught a cold and went to the library to study. Blow your nose and put it where it is. There is a lot of waste paper on the desktop. In this case, you should take the garbage away by yourself. We can clean up the rubbish on the surface. But some garbage is small, but it is difficult to deal with.