As an introvert, I don't get out much and I don't regularly meet new people. This means that if I want to photograph someone, it usually has to be someone I know.
People I know seem to tire of me taking their photos all the time. I could do a project on the looks I get when I raise a camera to my eye around friends and family.
I'm (pretty) sure that Tracy was just having fun with me in the photo above, but I also suspect there's a hint of "stop taking pictures of me!" in there somewhere. I get that a lot :).
Maybe I should get out more.