I wrote this a few weeks back, at the end of a long day that ended up with me feeling overwhelmed and anti-social. I’m an introvert in that I draw energy from being alone or in small groups. I can get through a regular work day, but if I have to add another group social obligation after that, I end up feeling pretty drained. It usually takes a strong dose of solo outdoor time to recover.
On a related note, Fast Company had a really interesting article on introverts/extroverts (worth a read).