Christians: would you be offended?

So this church group my cousin is apart of is going camping and my cousin invited me btw i'm an atheist and i love camping. My cousin told me they weren't going to be praying or anything so i'm thinking about going but i never learned anything about religion and prayers and stuff and if they do end up praying and ask me why i don't know prayers I know my cousin will blurt out "he's an atheist," and that's not the best thing to say while your surrounded by christians in the forest... So should i go or not?