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

Mulan has high energy and acts before thinking. I think she can be easily distracted too.

I think she's a bit of both, personally. But I've always seen her as insecure/introverted.

^ same. She's very active, but I think that she was just driven to do what she did because of the situation her father was in. I think that she seems a little on the reserved side.

tough call, she does think before she acts