I probably get recognised constantly at college, but most people just accept the fact that I'm "the guy in the poster" and don't bother commenting on it. I get the occasional knob who tries to be funny by shouting something out when he's with his mates, but hey-ho. I also see the exact same people every day on the bus going to college, and in certain places at college as well (I guess my 'routine' just makes it so I end up seeing the same people quite frequently).
Outside of college, though (bar the bus of course), I rarely recognise anyone, so I doubt anyone recognises me either.