Communication is not just about language, grammar, vocabulary, and how to make sentences. Your body can talk too, but it may not speak the same language – different countries use different body language.
A. In some countries, such as the USA, you look people in the eye when you are speaking. If you don’t, they may think you are not interested in them. But in many Asian societies, it is rude to look someone in the eye, especially a superior. A junior person must always look down when speaking to older people or superiors.