Ring Finger - The Peacock digit
This digit is concerned with the persona, the public face, the pleasure principle and artistic and sporting expression. If long (more than half a centimetre longer than the index digit) it's been linked in several research papers to sporting prowess, virility, the potential for risk taking and heightened spatial awareness, triggered through high testosterone level exposure in the womb.
The ultimate meaning of this digit though is that it's an elaboration of the display and rutting instinct in the competition to attract a mate, hence it's peacock metaphor.
It's related to all aspects of the drive to display – dressing up, the development of skills, aesthetics, creativity, sports abilities, the pursuit of thrills, danger and distraction. It's also connected with hobbies, entertainment and sense of play.