My exact words were "You know I don't believe in any of that, right?"

Subject dropped. I don't remember the exact conversation. It was either about gay marriage or Islam. My dad is a little amazed that I think Christians are as deluded as Muslims. And all marriage is bad.

Just do it the way they tell you they are nuts.

Consider not tripping on the label so much as an approach. First, I'd agree strongly with the other comments that suggest you need to do a risk assessment first. If being out about your non-beliefs is going to put any of your life in jeopardy, think carefully about whether or not you need to tell and who. IF you're just wanting to get comfortable with talking about it, consider forgetting the label "agnostic" or "atheist." Reason being...it's sometimes easier to say that you simply don't believe in a god or gods, if that's how you define it. (Some people define "Agnostic" as not "knowing if there's a god; different from "Atheist" in that is a lack of belief in god. But these are just words. Call yourself whatever you want to define yourself.) But think about the soft approach because people have notions of what these words mean, even in our community. A lot of people thing that being an Atheist means you deny gods or think there are no gods. That's not how I define it, but it's a lot easier to have a conversation with a believer if I just say, "I don't believe in god." That's sometimes a healthier point of departure because it's not as laced with potential issues.

next time religion comes up "I'm agnostic" !!! As for friends, if they react negatively, you may want to consider how good a friend they are.

I told my parents i was both gay and atheist at the same time. In retrospect I think it is a bit funny that they were more concerned about my being gay. In fact I cant' recall ever discussion my atheism all the way up until they died.

First, you need to buy a Agnostic.com tee shirt. Then wear it to your next family gathering.

He who owes nothing fears nothing. Why hide you're agnostic? There's nothing wrong in that.

Just be a good person, and if the subject of religion comes up, be honest. The challenge is to do it in a way that is not judgey toward others, lest you be judged. Let people know that you thought long and hard about it and what you've concluded that works for you.

The first few people you come out to, it may be hard for you, but it gets easier. You may find many of your friends and family are closet agnostics, but were afraid to admit it.