I usually say "I'm sorry, but I am not superstitious" because I want them to know that condescending "God bless you" is falling on really barren ground.

I dont! I avoid them like the plague!

I tell people that I certainly respect them but I personally do not follow their line of religious beliefs. That I have devoted too much of my life and time to allow myself to believe in something that has too much evidence to the contrary.
I also reiterate that religious and spiritual beliefs are extremely personal and that even their own Christian beliefs tell them that their relationship with god is between the two of them

At first I try to be polite and inform them I do not share their views and do not believe in a supreme being or religion. Should they persist I tell them I have up on my imaginary friends when I was 5

Question not asked, response not given. However, if someone does ask (and that is very, very seldom) I have no qualms about giving them the right answer; not the answer they would like to hear. In the apartment next to mine, there is a group of four LDS kids on their mission. I have them over on every other Wednesday and we engage in amicable conversations of religion and leadership. Thus far, there has not been any type of disrespect from either side. My children (15 & 17) are also free-thinkers and they enjoy having the LDS kids over. As a matter of fact, my children remind me to invite them over. As with these LDS kids, I do not hide my being a free-thinker. Closets are for clothes, not for people!!!

When asked which religion I practice I say "None, I am an Atheist."

The question is; How is that anyone's business except your own? I do not require or expect anyone to reveal their religion to me. If it is pertinent to the discussion, I say, " I am an atheist". I do not require approval or sanction.

I don't. There is no point in explaining my point of view to a Christian, they will be unable to understand it. I steer clear of them typically, but if I do have to deal with one, I smile, nod, and leave as quickly as possible.

You don't. Just say no to their questions and kindly bow out of things. Your a unique person and its easy to be kind to people. Dont try to convince them that your way is the right way. Let them figure it out. Pressuring people is their way of getting what they feel you need. Think about how you finally changed and let them do the same.

I say religion is humankind's most destructive invention, and even if there's a god he wouldn't like religion.

i say i don't believe there's a god as we know ,or don't know it!

When I lived in Maine, it was pretty easy. But now that I live in Alabama, I avoid religious discussions at all costs.

I don't, I just don't think it's worth the aggravation..

I just walk past them and ignore them, just because I don't believe ion their god, doesn't mean I have to rub it in their faces.

Why would you even bother? I'm as bothered by that as I am someone telling me that they are a Christian, who cares??!!
What you believe, or disbelieve is about as personal as your sexual preferences. ONLY appropriate in the proper CONTEXT.
That's what's so the matter with us as a species. I'm an atheist...yea me! I'm a Christian...yea me!!
NOBODY CARES......
Remember what your mother told you.... It's impolite to discuss Politics, Sex or Religion

Is not a problem to tell them in what you trust ,the complications start when after the question "Why you don't trust in god(the religious one),in jesus etc?"Then you start to explain what you think about their religion and they look to you as an enemy .....Part of the show for me )))

I usually keep it to myself. Eventually they get the picture and either keep me as a friend- however misguided, or shun me. If they do ask me outright I answer honestly by saying: "I believe in science, reality and having fun!"

Australia, where I live, is supposed to be a christian country too, and like the U.S. different states are more so than others. I am up front with people about the fact that I am an atheist, and if they want to know then I tell them why.
I tell them I have studied theology at university level, as a committed christian, and came away realising that it is based on MYTH at best, and at worst it is simply outright creative fabrication for political gain!!

Generally I find people tend to keep their religious orientation to themselves. Therefore I'll only reveal my atheism on a case by case , need to know basis.Sometimes I feel comfortable to reveal my beliefs and other times it feels more appropriate to keep them to myself.

You don’t really need to tell them . I’ve worked very diligently at being able to talk to people without that being a issue. I’ve learned to focus more on them when discussions of that nature come up. When proclaim this, or that all we do is help promote division , this makes it difficult to communicate. I put humanist in my profile because something had to be there .

I'm blunt and tell them right away. I don't BS about it. My whole work and family know. Respect the believer, NOT the belief. I learned that.

Don't. Not worth the drama. My motto, live and let live.

Did tell my sisterthat, if I'm going to christian hell, i'll have plenty of Christian company. That usually ends her judgement.

I think it's irrelevant. If they don't ask, I don't tell.

Definitely, tell them. Spread it as far and wide as you can. Who knows? Maybe they will come out as an atheist as well.