Those who know (man with brick behind his back while car omes past)

A middle-aged man, dressed in casual attire, stands on the side of an urban street. He is seen from the side, teetering on the curb. Hidden behind his back, unbeknown to passersby, is a standard-sized, weathered red brick. His gaze, a mix of curiosity and determination, is fixed on an approaching car—a vintage, glossy black sedan that's driving by.