Introvert or extrovert

[scallan]

Introverted people can be said to be people who gain energy from being alone and lose it from being in crowds, while extroverts are the opposite.
I've always considered myself an introvert, but i didn't find last nights social draining, but possibly energising. Maybe it's not people that I find draining, but being alone in a crowd. Maybe I've been too scared to get over the hill into happy valley.
Yet more thinking to do.