Honestly, I'm all of these things all at once.
For example: When there's only one other person around, I'll be so calm you'd think I'd be able to handle anything with an easy smile. Yet when there's more than 2 people around, I'm so high strung it's kind of painful. In each case, my mind is racing at 100 mph.
I can ramble on about nothing for hours, but when it comes to talking about important things, it takes a lot of effort on not just my part, but other people's to get me to say a word.
I can seem really happy on the outside, but inside I'm dying.
I've only ever met a few people who are able to see right through the facade I put up and will basically smack me in the face and make me talk.
Buh, this was spur of the moment, not really my best.