A male individual is observed indoors, consistent with a classroom or lecture hall environment, within Jiangjin, China

A male individual is observed indoors, consistent with a classroom or lecture hall environment, within Jiangjin, China. The subject, exhibiting a wide smile, wears a blue hooded sweatshirt, black-framed glasses with red temple arms, and a black backpack with gray accents. He is actively manipulating a black smartphone held horizontally with both hands. The background consists of a white wall or whiteboard displaying faint numerical and geometric markings, including a red dashed irregular polygon. Overhead, a white three-bladed ceiling fan and a white ceiling-mounted projector are visible against a white ceiling. A light brown floor is present in the lower portion of the frame.