When people are being watched, they behave better. And the illusion of being watched works, too. It was enough to hang a picture of human eyes in a self-service cafeteria, so that more people began to collect their dishes.

When people are being watched, they behave better. And the illusion of being watched works, too. It was enough to hang a picture of human eyes in a self-service cafeteria, so that more people began to collect their dishes.

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