When a little baby or a toddler smiles at a stranger in the street they should smile back? I took my DD out in her trike pushchair thing earlier and she was smiling and chatting to everyone she saw. A few people smiled back and even said hello, but I was shocked at the amount of miserable gits who kept a stony face and didnt even acknowledge her. One woman actually glared at me!! A smile costs nothing, surely?!