the standard reply to this would be that you should act professional and friendly. like that you will not build a personal relationship rather a Professional one.
however I happen to know that in a group home things are different, I dont know for which agency you work, and what your position is, if you have a steady shift or not, if you physically work together with your co-workers or not.
But the fact that it is a Jewish Agency makes things much easier, as most of the employees know about the Jewish tradition and that we dont have the same social life and attitude as one would see in a non Jewish group home.
just my 2Scents.