Have you ever found a religious person that was genuinely interested in hearing what you had to say from an atheist perspective? I've found that if you tell people that you're an agnostic, they may engage you in conversation in an effort to illustrate to you that their god is real, but if you're an atheist, they're more likely to berate you or simply refuse to listen to your opinion.
Yes, I have a dear friend who is religous Christian and very involved in her church and she is exceptionally able to share/allow me to share our perspectives. I have another Christian friend who I would share with but she's simply more of a doer than a discusser of deep, philosophical things. Jewish friends simply accept and are open to in-depth sharing because I find Jews range from non-religious to orthodox. I'd be curious to know how other religions view non-believers. My muslim friends think me so kind but have language barriers so I don't think they can really grasp my non-religious views. The friends I've had that were Buddhist are, naturally, open to non-believers. Great question, philosopearl