My child is 4 years old . He is studying in junior kindergarten at Sunnybrook School at Ontario. He don't like me to hugging or caring other babies or kids . He never share his toys . He talks a lot to me . But his teacher says he is very shy at school . Doesn't talk much or play with other kids . She also said that he is a very bright student when comes to his studies . What should I do . How can I change his behavior ?