You should be a polite man. Politeness is a great quality. Everybody will like you. Somebody thinks that politeness is shy for them I think they are totally wrong. But its behinds have some reason. When a man show his courtesy with others, not everyone but majority person think that, that person is foolish or weak. But I think everyman has some personality so don`t do that with others. Some people think if I honor another person, he will think I am weak. But some people think if I show honor with a person he will give encourage me. But reality is,if a man show honor with others, others man must will show his well behave. As a human we must show our best manners. Everybody wants good manners from others. Even a child can understand good manners. Don`t be like a beast. Everything will be vanished form the world but your good behave will stay era to era. Allah says in Quran love my creation then you will get my love. Be a good human indeed.