My son has just started reception, although we had these issues at preschool too. For example, He was asked to do something and he simply says, very politely, 'no thank you' and then covered his hands with his face. He thinks its ok not to answer as he is being polite. Also, when being praised at preschool or given a gold star he refused to take it, eventually the only way I could take one home was if it was given to me. He is ok one to one but in a group doesn't like to do an activity or answer questions. I am pleased he is a polite little boy but would like him to feel comfortable to answer questions, accept praise and doing new activities at school. Any suggestions??