to say that table manners in some of the countries in Southeast Asia are different from ours, would be a huge understatement. If you are one of those really picky people that can't stand bad table manners then brace yourself for these few example:
It's totally accepted to eat with your mouth open and even speak with your mouth full of food.
It is also standard practice to release a loud and long burp after a meal,which signifies that the food was to your complete satisfaction.