You're in a weird mood today, Space...
Most of the new people I meet are from uni. A really easy opener is to start talking about exams or an upcoming assignment, or the course content. Then things can move from there, but you have to remember to remain flexible in what you talk about because you can't talk about that sorta stuff forever. Try not to think too much about where you want to head the conversation, because you might miss cues to talk about other things. I tend to do that a lot, and then it frustrates me when the conversation turns to something else, because I've gone to all the trouble of thinking what to say.
Until you are really good at keeping conversations going, it's good to stop a conversation yourself once you see that you're both about to run out of things you want to talk about. Otherwise it can lead to many an awkward moment.