Many lefties I've known personally seemed quirky, and creative Thinking types. At times, some of the females seemed slightly lacking in a few typical female gender role qualities, and vice-versa. Socially awkward in some way or another, regardless of introversion or extroversion. Dry humor. Highly intelligent.
Personally, I write with my right hand, but with regard to overall handedness, I have what is referred to as cross-dominance
(not to be confused with actual ambidexterity. http://http://en.wikipedia.org/wiki/Cross-dominance). I chose "ambidextrous" in the poll, as cross-dominant wasn't an available option.
I'm not sure if there's any actual correlation with handedness, but I'm sort of a mix between my own gender-role, and fairly creative, and not incredibly social. Dry humor is great to me. So are painfully corny puns. I vary between emotional intensity and being totally aloof. High IQ. Self sufficient. Total klutz with regular tasks, but great with random things like changing my shoes while driving. Good penmanship. Looks like the speech-bubble text used in most comic books.
I recently injured my left shoulder, and can't use my left arm/hand for a lot of things. I feel incredibly restricted/handicapped right now.
I tend to hypothesize that my handedness was a learned behavior, to an extent. I'm not sure how much genetics come into play when it comes to handedness. My mom's a righty (a shy & emotionally unstable ESFJ), & my dad was a lefty (ENTx). My older brother & primary playmate growing up, was also a lefty (ESTP). My dad was in the navy & out to sea a lot, & died when I was 9. My mom worked a lot, so my brother & I were left to our own devices. I believe it's possible that I was born right-handed like my mother, but developed cross-dominant motor skills from modeling after my brother.