Here is the power point presentation I gave.
They didn't have any questions afterwards. After three days I think their brains were tired, but in general they are very reserved and questions and comments come freely only after they are comfortable with you and not in a large group.
One Oraon young woman asked if this was the same man who wrote the Kurukh grammar. Yes! She was so happy to learn, since her family speaks Kuurukh.