Expressing differences and similarities

Japan has many eating manners which are allowed in other countries. For example, tapping on table before eating and resting our elbows on table when eating are both considered to be bad manners, whereas it is no problem in some countries like Thailand. However, slurping noodles is not impolite (only Japanese noodles).This is in contrast to Thailand, where slurping noodles is not allowed irrespective of noodle's type.