As we all know a percentage of the people we meet are going react like your shooting at them if they see you using a knife to slice an apple, fortnightly they’re a minority, unfortunately however they often show up in much higher concentrations on college campuses. They also tend to be the “decision makers” on campuses. As said above, using your head while using your knives is always a good idea, particularly so on a college campus.
Virtually all of your general knife needs on a campus will be more then adequately severed by a small slicing knife.
Think about those things when choosing what you bring, a knife like the Spyderco ZDP Caly 3 (or something similar) is a good choice. Its small, elegant and very non threatening, its also an incredible little utility knife it will more then handle everything you need for your entire college career no matter how many senior years you have.
Basically the best advice is go for something small and elegant (if it would look out of place with a suit it might not be the best choice) and use your head when using it.
Edit: the above is in addition to a SAK, is your college life is anything like mine the bottle opener will come in handy.