I have in the past tried to communicate with people of different faiths and tried to go in to friendly discussion with them.
I'm afraid that I have nothing positive to report. Christians and Buddhists appear to be generally accepting of you denouncing faith as a whole. Muslims have refused to speak to me for not being religious. I did not put this up front, I was asked. Muslims have a name for people like us, namely "kafir". http://en.wikipedia.org/wiki/Kafir
As a whole Islam appears to me to be the most aggressive of religions. The Taqiya as posted by Marvel underlining perfectly my reservations against it. http://www.thinkatheist.com/xn/detail/1982180:Comment:1210344
On a slightly more positive note experiences with Christians in my area being called a "good Samaritan" after having gone out of my way to help someone. I've also received many blessings for giving helpful advice. I politely leave them under the illusion that I appreciate their blessings. The truth is a little more ironic of course as an atheist.
I think you will not find positive stories about religion on an atheist forum. It is simply the wrong place to look for that.