Different countries and different people have different manners. We must find out their customs so that they will not think us impolite. Here are examples of the things that a person with good education does or does not do.
If you visit a Chinese family, you should knock at the door first. When the door opens, you will not move before the host says "Come in, please." After you enter the room, you would not sit down until the host asks you to take a seat. When a cup of tea is put on a tea table before you or sent to your hand, you will say "Thank you" and receive it with two hands, not one hand, or they will think you have ill manners. Before entering a house in Japan, it is a good manner to take off your shoes. In European countries, even though shoes sometimes become very dirty, this is not done. In a Malay (马来人的) house, a visitor never finishes the food on the table.
He leaves a little to show that he has had enough. In England, a visitor always finished a drink or the food to show that he has enjoyed it. This will make the host pleased.