Table manners are about how to behave when you eat a meal. Different countries have different table manners. Now let's see some table manners in the following countries.
Japan
It is OK to make some noises when you eat noodles in Japan. Making some noises is not rude but is praise to the cook. The Japanese also say it tastes better if you make some noises while eating.
What else to watch: it's important to say "Thanks." before and after a meal.
France
In France, a meal is like a ceremony. People enjoy it and make it a special event. You should never discuss money over dinner. And going Dutch (各自付费) is not polite.
What else to watch: you need to finish everything on your plate.
Mexico
In Mexico, whenever you catch the eye of someone who's eating, even a stranger, it's good manners to say "provecho", which means "enjoy".
What else to watch: where you sit is important in this country. Before you get seated, look for place cards, or wait until the host seats you. And you must say "Enjoy your meal." before you leave the table.