If they ask I tell them. Many freaked out and ran away, some tried to save me and a few said me too.
It was hard coming out as agnostic because my whole family is Catholic. I have only told immediate family and close friends. My friends have been cool about it, but my family took a long time to get over it. Fortunately my parents and I were speaking again before they passed.
I was never in. I have questioned religion and the existence of god/s for as long as remember.
Just my son and I told my wife I'm not sure about all the religion...