don't worry, my daughter didn't speak much at that age, 健康院姑娘 said they will start talking 'correctly' around 18 months. 如佢所講 I started to get 'surprise' after she reached 18 months. by now.... (she is 2yrs).....ha ha,就覺得煩喇! Besides, boys are rather slower than girls. don't worry. you may try to talk to him slowly & clearly so that he may learn the 'words' from you. :-P