In the video, a person is holding a smartphone and playing a game. The game appears to be a first-person shooter, with the player moving around a room and shooting at targets. The room has a tiled floor and wooden walls, and there is a bright light coming from the window. The player is using a virtual joystick to control the movement of the character, and a virtual button to shoot. The game seems to be quite immersive, with the player moving around the room and aiming at targets.