I just want to say that I hate it when people interrupt me when I'm reading. I am obviously doing something, so anything more than a comment or two is rude. Part of the fun of reading is getting imersed in the story and I can't do that if people keep interrupting me.
For example, I sit around a lot at my part-time job so I get to read when we're not busy. On one such non-busy day, I was reading in the seclusion of the gift shop when one of my coworkers kept coming in and talking to me. I don't mean to be rude, but why is it that some people cannot pick up on social cues? If I talk to someone and all they respond with is "uh huhs" and "yeahs" I just leave them alone. However, this chick did not bring her own book to read, so she preceded to walk through our book section commenting on all the ones she wanted to buy.
I try not to be too curmudgeony, but when I'm doing solitary activities, I like to be left alone. I come from a family of loners so I suppose I inherited it from my parents. Don't get me wrong, we are very chatty and social most of the time, and my family will attest to the fact that I talk a lot, but we all enjoy our alone time.
So, if you ever see me reading, and I don't respond to your comments with much enthusiasm, take that as a gentle social cue that I want to be left alone.