cone-ing in on

The old addage is that eyes are the windows to the world.
And it's true. Though the blind's eyes aesthetically are exact replicas of our own, us seeing-folk, upon meeting a blind person, immediately pen them as such. It's because their eyes are empty.
But I'd like to add that I think hands are {almost} as easily readable and as telltale as the eyes for matters of the heart and head. Truthfully, this struck me last weekend at a bar after noticing a friend's painted {red} finger nails.
Did she paint them herself? Yes answers might reveal some artistic appeal and someone who avoids frivilous spending. It might also suggest that she's somewhat down-to-earth and but values the upkeep of her overeall appearance. A no answer could reveal the opposites of the above, in addition to her desire to keep up with a particular "feminine" ideal, or a family in which all of the women value taking the time to do something for yourself.
The color, the state of her cuticles, the way she holds a cocktail glass or moves her hands (when she speaks?) all allow those watching into her head.
I envision it as a cone; peering into a hole the size of a fingernail and viewing a galaxy-sized soul.