I AGREE! I always get asked when the next bus is. It's like, dude, we're at a freaking bus stop. Look at the timetable and fuck off while I'm listening to my music!
I think my main rule is don't bloody talk to me if I'm reading a book. Does it look like I want to talk to you?! Also, if you see me reading, don't come over and ask me what I'm reading. Chances are high that you won't know what it is, and you'll get annoyed when I say "a book", and when you ask me what it's about, I will say "stuff".