Inside a metro train operating in Jiangjin District, Chongqing, China, which includes the town of Shuangfu

Inside a metro train operating in Jiangjin District, Chongqing, China, which includes the town of Shuangfu. Two East Asian adult males are seated side-by-side on a white molded plastic bench. The man on the left, appearing mid-20s to mid-30s, has a short, dark haircut and wears a dark bomber jacket, dark track pants with a grey stripe down the outer seam, and black shoes with white socks visible. He holds a gold-colored smartphone in his left hand and touches his chin with his right hand, looking down at the device. The man on the right, appearing 40s to 50s, wears glasses, a dark hooded jacket, and dark jeans. He holds a gold-colored smartphone with both hands, also looking down at the screen. A blue patterned cover is present on the backrest of his seat. Behind the men, a large advertisement poster in Chinese, primarily orange and white, displays a hand holding a dental implant and text for a dental clinic located on Dingshan Avenue in Jiangjin District. Below the advertisement, a red emergency call panel and a rectangular red sign with a 'no eating or drinking' symbol are affixed to the white wall. Silver vertical handrails and a window reflecting the train's interior are also visible.