You should never have to say hello or goodbye. Even at work sometimes, and I know this is very unpopular, is that if I'm going to work every single day, I don't think you should have to hug people hello every single day when you come to work. I saw you Monday!
I'm not bothered by the paparazzi and I don't feel hemmed in, I've never felt that. My youth, mind you, there wasn't quite the same attention to celebrities as there is now, but I've never felt that.