It's not the central point of your argument, but it bears calling out - there is plenty of body language on the road. I can see these and more:
- Drivers turning their heads to check side mirrors before changing lanes.
- Swerving slightly when making blind-spot check.
- Front wheel turning before the vehicle turns.
- Drifting side-to-side within lane, signifying the driver
is distracted (or drunk).
- Speed discrepancy signifying the driver is possibly lost and at risk.
of making a sudden turn.
- Tailgating or excessively quick approach, indicative of possibly impulsive behavior.
Predicting behavior of other drivers on the road is key to survival.
