Being an introvert, I choose not to disclose a lot about myself to others. If it's relevant with a particular person, fine. And I don't need to know every little thing about acquaintances, either.

I used to have a good friend who was a lay preacher, too. We had a lot of tastes in common apart from her religious beliefs and we got on fine. That was in the UK though, where religion is really not that important.

I have no interest in my atheism being the thing that defines me. Many believers seem to forget everything else they know about me once they learn of my atheism. Such a narrow way to think, but apparently common, because often their beliefs dictate they stop appreciating at that point. There is so much more to me, than my lack of belief in any gods, that it would be cruel of me to stop them short by enlightening them to this fact too soon.