Can't you try to believe?
I'm not quiet about my atheism, not in your face about it either. So, in general conversation it may come up and one of the most common responses is "If you would believe then..." Like belief is somehow the first step and not a result.
There's various ways it's presented. "Just accept Gawd", "Let Jesus into your heart", "Ask the holly spirit to... do whatever the holly spirit does" or "Try to believe/have faith in"
All of them use belief as a start point and not an end result and that I think is where a lot of friction between believers and non believers comes from. To them we're being stubborn because somehow we've chosen not to believe, to us (me anyway) we can't choose to believe anything. We simply believe what seems to be the most likely given the information at hand.