I don't see intro/extroversion as an astrology-type analysis that is supposed to dictate your actions and foretell your future.
But the first time I read testimonies of other introverts, it was like reading about myself. It's the little things...like mini-panic attacks when you have to sit in a circle and introduce yourself, and waiting for your turn is just agony....
When I was a child, I used to whine, "Don't look at me!" at the dinner table. I would like to say that it is about not liking to be the center of attention. But we all seek attention, in our own way.