why you don't do this in Japan 1

1 You can NOT point with chop sticks, this is considered very rude.

2 You HAVE to bring small bowls of rice and side dishes to the mouth. Bending down to eat these foods is considered dog like.

3 you are not in trouble if you don't wear your seatbelt in the backseat. Because you don't really wear a seatbelt on a train or bus, this is considered an option.