Human drivers are smart, and will generally judge your appearance, confidence, and context to determine whether or not your actions are legitimate. And you likely always pass these tests.

Imagine a teenager, dressed in street wear, who jumps into the middle of a street to stop traffic in a way that has no explanation given the scene, while their friends laugh on the sidewalk as they observe.

Or a group of men in masks stopping a car in an alley as their accomplices surround the vehicle.

Any human driver will recognize these scenarios as illegitimate. It isn't just the act of directing traffic that is judged in isolation.