In the video, a person is seen painting a large cardboard box with a can of brown paint. The person uses a paintbrush to apply the paint to the box, starting from the bottom and moving upwards. The paintbrush is visible in the person's hand, and the paint can is placed on the table next to the box. The person's movements are steady and deliberate, ensuring that the paint is applied evenly across the surface of the box. The color of the paint is a rich, earthy brown, and the cardboard box appears to be of a standard size.