Paris, France. This environmental campaign "calls out" specific individuals who have thrown trash outside the trash cans. "You can leave a more beautiful trace on the earth" is the warning. It's clever because it puts the focus on each of us as individuals, and our specific actions in real time.
But it's shame based. I wonder if it would be more effective to honor individuals when they put it in the can? With the message that you did something to beautify the world?
If it were honoring, not shaming, would it be more believable that these could be real people, not fictitious people?