I think all campuses, big or small, can feel quiet at various times of the year. Last week I walked into campus, and it seemed quiet, however, there was a large student union activity going on in a different area. Look at what is going on at your campus, especially with the student union. Sometimes activities and events can happen away from campus, for example, we have had local walks, drinks at a local bar, quizzes and mini golf going on. Also don't just visit campus when you are attending lectures, come in on other days and you can often find things going on that you may not have been aware of, for example, I walked in, and Drag Bingo was going on so I joined in. Have you thought about setting up or joining a society and getting involved with the SU. It's a wonderful way to make new uni friends and get involved with university life.
Good luck and I wish you the best at university.
ARU Dee Student Ambassador