I think it's wrong to think of introverted/extroverted as a black/white area. Just as there are those that are clearly one way or the other, there are others th

I think it's wrong to think of introverted/extroverted as a black/white area. Just as there are those that are clearly one way or the other, there are others that I'm sure are borderline. For Meyers-Briggs I've tested as an INTJ (taken at a previous job), and ISTJ in a personal test. Since I scored the personal one myself, I could see my scores in S/N and J/P were very close. In examining descriptions of the types I'd tend to classify myself more INTP/INTJ - clearly recognizing the traits of each in myself, but the only section I'm truly certain of is the I and the T. I also tend to disagree that a person is one way online versus offline. I know I suffer from anxiety, but I have no problem standing in front of a crowd making a presentation for which I'm prepared and/or confident in my subject knowledge. That does not indicate I don't suffer from general anxiety though. I'd say it's the same with introversion. I could have a blog or tweet, but I think you'd notice a distinct difference in tone versus an introvert and extrovert, or how much personal information is shared versus professional. I'm sure there are introverted bloggers just as there are introverted journalists, actors, musicians, and other professions with a high public profile. The 'public' nature of what one does is not what defines their personality traits.