In the video, a person is seen using a smartphone to draw a graph. The person's finger is visible on the screen, and they are using a red line to create a graph. The graph is displayed on a white background, and the person appears to be adjusting the line to create a specific shape. The person's finger moves smoothly as they draw the graph, and the red line is clearly visible against the white background. The video is shot in a close-up view, focusing on the person's hand and the smartphone screen.