Depends on the students and their personalities. Some of them come because they really want to, some come for the party life, some come because their parents want them to. For the students in my writing class, I feel they are there because they want to. Even if their writing isn't the best, they do work hard, and come tell me how many hours they spent in the library writing their papers. haha, like they need to verify with me how hard they work :P

majority are partying and drinking, except the few days before finals

it just depends on their personalities, Lots of students like to party on various levels. There are many who play sports, or are involved in some kind of organized campus activity or club, and Most everyone at some point has at least one part time job. I had 2 part time jobs when i was in school, and 1 full time job during the summer months, Everyone studies, but not everyone has the same drive to study. some are just studying enough to pass, and graduate, and get on with having fun and maybe find a job they can be good at, and others are more focused and actually plan on graduating with top honors, and getting accepted into the job of their dreams.

And yes, they usually get jobs to support themselves in college. Some are athletes at the university, and others join organizations like Dance Club, and so on.

they bark for new hotties?