Some researchers see the brain as having two general modes. In one mode (often called 'right-brained'),

it is more intuitive, visual, and creative. In the other (often called 'left-brained'),

it is more logical, sequential, and analytical. All of us work in both modes, but naturally

tend towards one or the other.

According to the theory, if your right thumb is on top of your left thumb then you tend

to be a so-called left-brainer, and so are more likely to be verbal and analytical. If

your left thumb is on top of your right thumb then you tend to be a so-called right-brainer,

and more likely to excel in visual, creative, and intuitive tasks.

So, if you want to gain a fun insight into someone, maybe you should ask them to put

their hands together.