People use body language to send messages1 each other. It is very2 because it can help people make themselves easily understood when talking with others.
Different countries have different body language. For example, in some countries, people3 to say goodbye. But be careful!In Greece, waving is not at all polite!In fact, it's very4 . In Russia and France, people kiss each other when they meet, but men in China or Australia shake hands instead（替代）5 . South Americans sometimes hold your arm6 they talk to you, so you can't move away!7 in Britain many people don't like other people to touch them at all. People in the Middle East like standing 8 each other when they are talking, but North Americans must keep a distance（距离）when they are talking. They need more personal space.
When you are in a foreign country, it is very important to9 the customs（习俗）. It will help you communicate with people and make your stay there much more10 and pleasant.
