So till now, I have only talked about my atheism to only 3 people outside my trust circle. Those conversations are humorous enough too.
First one was at a snack table, with 2 friends from my work (I'm learning now to not disclose my trueself to colleagues). We were talking about horror movies. I said even if I don't believe in God, I'm afraid of the ghosts, I know that's not real, but the feeling is too real. I didn't expect the entire conversation would shift to me not believing to God from after that. You don't believe in God??? I saw what was going on, they were transforming me to some inhuman being just because of my atheism. So, I said, well, I am an atheist, and if we are talking about our supreme beliefs, then for me it is humanity. The girl asked even if you doubt God's existence, don't you pray before exams etc.? The guy said that he isn't religious, but he was spiritual. I was too tired/afraid to answer them. So, I instead asked, what do you mean by spirituality? He couldn't answer. I said, yeah spiritual sounds good, like my direct connection to God, no man-made religion in between. And, that was the end of that conversation.

The second one in an online chat, people usually sext there. And I go there to do my own fucke*y. This chat was such a moment. A muslim guy popped up, and asked "you F? Muslim?" I said well female's correct, but I am an atheist. He asked what I was doing there. I asked "you like girls?"
He: "of course! I am a guy!"
Me: " yeah I know. but do you like girls?"
He: "what kind of question is that?"
Me: "why? many guys like only guys."
He: "that is stupid. Gays are not natural. God created us men and women for a reason."
Me: " well, I don't believe there's a God who created us. and, yeah I know males, females have different sex organs. They can make babies in that way. But what's unnatural about just having sex for its sake, and with whoever we want? and what weird in being attracted to people with the same sex organs?"
He: " yeah its okay as long as they stay away, and don't do PDA.
Me: "why stay away? all of us have equal right of mobility, equal right to be in the public place. And, for PDA, why point out the same-sex ones specifically? if you don't like PDA, you don't like it. Why differentiate even in that?"
He: " Because that's just wrong. Men and women should be attracted to each other. They are created to be with each other. "
Me: " Okay, let's take your argument once, and try to proceed a bit. So, you know there's an orgasm gap between men and women, right? And that, most women, have more satisfaction from clitoral stimulation that penetration? That means if just only sex is concerned, average man and average woman are not meant to be together, not really created like that."
He: "well you can say so."
Me: "cool. And about the existence of God, I would very much like God to be there, an entity who is omnipotent and omnipresent, who helps good people, saves them, and punishes bad people. But the problem is in real world, it doesn't happen. Where is God when a rapist is raping someone?"
He: " Think of your parents. They can't always be there with you, right? Same goes for God."
Me: " Well from the definition, God should be omnipresent. So, why will I believe such an entity who was just taking a short nap when some bad guy was doing something bad to me? Nobody deserves to be raped, so now please don't bring up a karma crap to me."
He: " Well, I like to believe in God."
Me: " Yeah fine. And I don't. So, when having a common discussion (or, even worse, decision making) about sexual identities, orientations, gender roles, bodily autonomy etc., you should not bring up your personal brlief system in that. Because that is just not staying limited to you, that is affecting other people.
He: "you like di*k?"