well,
1. I work in the Music Library at UW, so i shelve, check-out/check-in, help patrons, maintain the silence, search for
lost items by hand, and clean up the place
2. I study for hours on end because I enjoy the silence of UW's reading room, I am there when the library opens on
weekends and there until they kick me out, closing time.
3. I sleep, usually at one of the desks so I can catch up on nap time, or I am just sleeping the time away before I go
to work.
4. I use the bathrooms in the library because they are less discrete, as not as many people are in the bathroom
facilties at one time. So you can do #2 and not worry about the bodily sounds you produce.