In the video, a person is holding a smartphone in their left hand and a red stylus in their right hand. The person uses the stylus to draw a continuous line on the screen of the smartphone. The line starts from the top left corner and curves down to the bottom right corner, forming a shape that resembles a letter or symbol. The background is black, and the smartphone screen is white, providing a stark contrast that highlights the line being drawn. The person's movements are smooth and deliberate, suggesting that they are experienced in using the stylus. There is no text or other information visible on the screen, and the focus is solely on the drawing process.