How to deal with boyfriend's family?

My boyfriend and his cousin are the only who who accept me. I am a vegitarian and like to be out in nature. I reflect on life in a postive way through meditation, and only use animal cruelty free products. I am in West Virginia until next Sunday for this extended family reunion. I came along because I have been with my boyfriend for nearly three years now. I was very excited but now I am very sad because they have caught on to my lifestyle. I don't flaunt off my lifestyle because of the sterotypes, but they have seen the signs. What do I do? I just don't want to be teased and have to hide who I am but I also want them to like me.