Some introverts are prone to rushes of sociability, what I heard that really clicked with me was that it's how you relax or recharge. If you relax or recharge best alone then you're basically introverted, if you relax or recharge best by being social you're basically extroverted. I can be incredibly social and am prone to frenzies of activity that cause many to think of me as an extroverted person. Afterwards however I need to retreat to my space and spend a lot of time alone to recharge, also if I don't get that alone time for too long I end up run down and worn out. It's just part of the fun. I would definitely say there are pros and cons to both sides the biggest seem to be that introverted people lose out since we are such a socially connected society while gaining in independent action. Extroverts seem to effortlessly maintain social connections that they often can use as resources however often suffer from loneliness or fear of being alone. These are purely my own experiences of course, YMMV. In any case learning to relax and your own particular way of doing it is important no matter what category you feel most comfortable under.
