In the video, a person is seen using a paintbrush to apply yellow paint onto a white canvas. The person starts by placing a single drop of paint on the canvas and then proceeds to add more drops in a vertical line. The person then uses the brush to spread the paint outwards from the center, creating a circular pattern. The video captures the process of the paint being spread out, with the person's hand and the brush being the main focus. The yellow paint stands out against the white canvas, and the circular pattern created by the brush strokes adds a unique texture to the artwork.