Groucho
Greg Davis (50)
An introvert isnt a person who is 'inward looking', that term can be somewhat misleading and insinuate that a introvert is someone who cares more about himself then his surrounds, which couldn't be further from the case.
An introvert is a person who doesn't speak unless something needs to be said, he would rather sit back and listen to other peoples opinions before pressing his own, a person who would rather consider there options in depth before speaking, a person who revels in quiet time because it gives them time to think at depth.
http://www.forbes.com/2009/11/30/introverts-good-leaders-leadership-managing-personality.html
Well, we'll have to agree to disagree.
Regardless of what Forbes magazine says, the terms introvert and extrovert originated with Karl Jung. According to Jung, an introvert is a person whose interest is directed inward toward his own feelings and thoughts. An extrovert is a person whose attention is directed toward the outside world. Jung differentiated four functions: thinking, feeling, sensation, and intuition.
The pop psychology interpretation of extroversion misinterprets Jung by focusing on behaviour, and especially on behaviors such as aggression and display. In the Jungian system, any person who to wishes to impose themselves upon their environment is by definition an extrovert.
It doesn't matter if they choose to do so by their clothing, their way of talking, or simply by their leadership: the key differentiator is that they are outwardly focused.