Maybe you've already said and I missed it, but I'd be curious to know how long you've worked there. When I first started my current job, it was the exact same situation. I think they sensed I was nothing like them, and really only talked to me when they had to. Once I settled in there I think they got more used to my sense of humor, etc and just accepted it. But I never really held anything back, I just put it out there and if they didn't like it too bad. Eventually I think they just got used to it though. Now I just transfered and it's the same thing. I'm also in retail and it really is a hard clique to fit into sometimes.