In the video, a person is seen drawing on a piece of wood with a black marker. The person starts by drawing a straight line and then proceeds to draw a curved line that intersects the first line. The person continues to draw, adding more curved lines that intersect the first two lines. The person's hand is steady as they draw, and the marker leaves a bold, black line on the wood. The wood appears to be a light color, possibly pine, and the background is a dark surface, possibly a table or workbench.