Be patient, and freindly, and people will come around. They may still be getting used to having you there, or maybe they liked the person who had the job before you and are missing that person through no fault of your own, or theirs. I know over the last two years in my office, we had - let's see, 8 or 9 people in and out for one positon. And after a while, we sort of all stopped trying to make friends with new folks, as we ever knew if they'd last 2 1/2 days, 2 weeks, 2 months or what! Thankfully the person who is there now appears to want to stay.