jonm, I should have been more clear. "Left-brain-dominant" people are, for the most part, right-handed. The motor nerves cross over in the brainstem (nobody knows just why). The dominant hemisphere is generally the one where the speech center is located, and it also tends to "specalize" in logical, sequential, language-based processes.   The non-dominant hemisphere is believed to handle more spatial, emotional, and intuitive mental processes.

In right-handers, the dominant left hemisphere controls the "better" hand, which is the right. In most left-handers, the left hemisphere still controls speech, language, logic, sequencing, etc., but the controls for the "better" (left) hand are in the non-dominant right hemisphere. In true right-brain-dominant lefties, the right hemisphere does everything that the left hemisphere does in a rightie: language, strong hand, etc.--those are the ones whose handwriting posture is the mirror image of a rightie's.

So you and your friend are each in fact picking with your dominant hand.

Are you confused yet?

Aloha,
Mark