we're a misunderstood bunch

"Researchers using brain scans have found introverts have more brain activity in general, and specifically in the frontal lobes. When these areas are activated, introverts are energized by retrieving long-term memories, problem solving, introspection, complex thinking and planning." — Experts: Introverted youth have deep roots for behavior

"How many people are introverts? … 'a minority in the regular population but a majority in the gifted population.'" — Caring for Your Introvert: The habits and needs of a little-understood group

And finally, a joke: How you can tell an extrovert from an introvert at the NSA? In the elevators, the extroverts look at the other guy's shoes.