1. Draw a big circle with compasses and a diameter with a ruler. As shown in the figure below.
2. Choose a quarter of the diameter and draw two small circles as the radius. As shown in the figure below.
3. Erase the excess and draw two smaller circles. As shown in the figure below.
4. Fill it with a pencil, as shown in the figure below.
5. Finally, draw the gossip around with a pencil. As shown in the figure below.
Note: When drawing a circle, if you don't have a compass, you can use a bottle cap instead. In addition, you can draw a rough outline first and then erase it with an eraser.