thanks for your input, Evemomma. I actually do spell things out in detail and have even drawn pictures explaining social and behavior things, but the next time she is in that situation, it seems she forgets. I often get an uncomfortable feeling in social situations with her that I don't feel with her younger sister. She does remember please, thank you, and excuse me though. I guess I have to remind myself that some things have gotten better eventually even though it took one hundred repetitions to get something that came naturally to her sibling.

We do use charts but I am certainly open to doing more rewarding (verbal and otherwise) for socially smart moments.