How do I tell my friends I'm wicca?

I have a rather large group of friends, most of whom are mega christians, but i'm feeling kind of outcast, because my friends don't know me for who I am. At a party last year, I found myself stuck in a conversation between some of my friends about how they thought witches and wicca were "evil". I was hurt, but didn't say much and just kind of left. I am thinking about telling one of my closest, and least religious friends first, because she didn't express any real opinion that night, so maybe she'll accept me. Then it might be easier to 'come out of the broom closet', as it were. One of my close friends has already left our group because she was atheist and got fed up of the grief some people gave her, so I don't see her as much as I would like either. I am fed up of being torn in two.