Congrats on the move - Yippee!
My friend took movies of her extraverted PG daughter interacting with cousins and then played it back with her daughter alone so they could go frame by frame with my friend asking leading questions....
"How do you think X felt when you did that? What do you see X's body doing that might give a hint? What do you think will happen next? What do you think X is wishing right here?"
I think this could also work with recordings of regular TV programs.
Youtube also has some interesting information about 'social stories' aimed at kids on the autistic spectrum, but perhaps useful to many kids - seehttp://www.youtube.com/watch?v=Jfq6S6FOQCk&feature=related
My favorite book for helping parents help their children develop age appropriate social interactions is Friends Forever: How Parents Can Help Their Kids Make and Keep Good Friends
It helped me know what realistic expectations for my child, and my child's agemates were! Then it gave me so ideas about rules to teach and enforce.