The lighting wasn’t even, which biases the results a little bit, but a few interesting observations:
We both tend to smile more with our left side (see the smile lines around the mouth)
The outer corner of my left eye points downwards; the right one points up
Eyebrows make Joey look a little more “evil” in the all-right picture. In his all-left image, I see more of a geek, even with the “cooler” Ritchie Valens hairdo.
Thank God I have a left side. Otherwise I would be hedious.