Stephen claps his hands

Stephen claps his hands since few days. He walks more and more but doesn't want to talk anymore. He now eat a lot of congee, I didn't know what to do for his food before. We step by step change his sleeping habit and he now goes to bed at 10:30PM. He still does two naps during the day. Stephen already has many friends downstairs with the elderly as well as in fairwood restaurant where I use to go with him everyday.