I have been in the same position recently. I don't want to give this little boy up, you never know what ahead. Anyway, what I do now is keep him busy, sitting down, at the little table. Books, puzzles, Mr. Potato Head, coloring, cars, sitting down toys. That's his table. When we do playdoh that's where he sits by himself. He gets to excited as soon as he is involved with other children. This has helped greatly. If I'm doing something with the whole then he comes to sit or dance whatever with us. Hope this helps. Good luck.