Extraverts often:
Have high energy
Talk more than listen
Think out loud
Act, then think
Like to be around people a lot
Prefer a public role
Can sometimes be easily distracted
Prefer to do lots of things at once
Are outgoing & enthusiastic

Introverts often:
Have quiet energy
Listen more than talk
Think quietly inside their heads
Think, then act
Feel comfortable being alone
Prefer to work "behind-the-scenes"
Have good powers of concentration
Prefer to focus on one thing at a time
Are self-contained and reserved

nice pick