The video shows a person playing a first-person shooter game on a smartphone. The person is holding the phone with both hands and using their thumbs to control the game. The game appears to be set in a virtual environment with buildings and vehicles. The person moves around the game environment, aiming and shooting at targets. The game's graphics are colorful and detailed, with a realistic style. The person's thumb movements are quick and precise, indicating that they are experienced at playing the game.