Good manners are very important in the munication of daily life. Everyone likes a person mon examples. A person with good manners never laughs at a people in trouble. Instead, he (she) always tries to consult or offer help to the person. When he (she) takes a bus and sees an old man or a sick man, he (she) always gives his (her) seat to him. He doesn't interrupt other people when they are talking. He uses a handkerchief when he sneezes or coughs. He does not spite in public places.
Ideas of what are good manners are not always the same in different regions. For example, people in Western countries usually kiss each other to show their greetings, whereas in China, kissing in public is something of unusual and sometimes be regarded as impolite to somebody else. So it is important to know what is regarded as polite and impolite before you go to a region. But remember that it is always right to be kind and helpful to others.