You can tell when people think they're a little bit special, and it's quite fun to laugh at them, and I think it's good to laugh at them, because then you can deflate their egos a bit.
I really hate being recognised. I'm quite a shy person, and I'm not very good at talking to strangers. So when people come up to me in the street, I just find it quite awkward. I don't really know what to say to them.