My DS 7 and was diagnosed with Autism he has recently started to start to talk for the first time and I have waited years and years for this day! The only issue is that he has only just started to say two words together and he will say ' shut up, shut up!' Over and over. I know my son and I know he doesn't know what it means or anything about what he is saying, he walks around saying it to himself over and over. I have had a lot of comments from people saying I should ' stop' or ' punish' him for saying the unkind words but I know he clearly doesn't mean any harm.
I try to help his vocabulary by always talking to him but at the same time I don't want to put him off trying to talk and communicate after waiting this long to hear him speak.
I know shut up isn't the nicest of things he could be saying and I am trying to support him to say new words but it takes time.