How curious are you? How well do you communicate that curiosity? Do you ask questions? Or do you prefer to tell people what you know?
It has been my experience that, people who are self-centered have little interest in knowing about others. They wish to learn almost nothing from others.
However, an individual, who has taken great care of their needs, is usually the one who wants to listen to what others have to say. They enjoy getting to know others well. This kind of person has a great deal of self-esteem and, therefore is, a very curious being.