Nowadays, to become a professional in what you do is not enough. If you want to be promoted or to succeed in your own business you have to have contacts. When you realise that, you face another problem, which is “How to build that kind of contacts lists?” Some people begin their careers already with that kind of list of contacts, because of the environment in which they were grown up. But if you are the one who was not so lucky as those people, that article is for you.