I have found the work of Michelle Garcia winner extraordinary as an intervention tool for social thinking development. See http://www.socialthinking.com. it’s taken me a couple of years to understanding it ( I got her book Thinking about you thinking about me). I also use zones of regulation books. Today I put two together in my session with a little 4 year old on the spectrum ( Well, I think it’s more about narcissism than autism but hard to tell at 4) and boy, did she suck it in! And there are great ideas for parents too! I actually think school is the most perfect place for social skills training- you just need the time and the adults.