A tall, primarily dark-colored service robot with white side panels and a blue-lit base stands on a tiled floor

A tall, primarily dark-colored service robot with white side panels and a blue-lit base stands on a tiled floor. Its upper screen displays a blue, anthropomorphic smiling face composed of two square "eyes" and a curved "mouth." A yellow sticker labeled "STEWARD ROBOT 4" is affixed below the screen. The robot's front features dark, reflective panels, faintly revealing a round, light-colored object inside. To the robot's left, a person is partially visible, dressed in dark clothing, including a long-sleeved top, dark tights, and dark flat shoes. Their right hand is raised near their chest, and a watch is on their left wrist. In the background, stacked dark trays are visible on a counter, adjacent to a light-colored wall with horizontal banding. The floor exhibits a checkerboard pattern of light and dark grey square tiles. This scene is located in Unknown, Macao.