oh yeah that's another piece of advice I can give re: activists...
Invest in an ipod + sunnies and they're less likely to bother you - this is especially useful during MSA election time, which nobody except the candidates care about. That way you can look engrossed in your music. Also, they won't see you accidentally looking their way. Cos once you look their way they'll take that as a sign of interest and ambush you. And when there's about a billion of them in the campus centre it's kind of difficult not to look at any of them.
Also, invest in a shirt that says "Fuck off I've already voted" or similar for use during election time.
EDIT: reading back this sounds like a "joking" post... I'm not joking, I'm actually serious, and if anyone can tell me where to get a "fuck off I've voted" shirt I'd very much appreciate it...
But you get a whole lot of activists that get in your face.
I had a Students for Palestine guy in my face, he wouldn't take "I'm not interested" for an answer and kept following me (wtf??) so finally I looked him in the eye and said "my boyfriend is Jewish" and I've never seen anyone back off so quickly