Draw five parallel lines on a sheet of paper. Number the lines from one to five, starting with the bottom line.
Place the tip of the pencil near the left edge of the fourth line (the second line from the top). Draw a curved mark up and to the right until you touch the fifth.
Continue curving the line down and to the left. Stop when you reach the second line.
Draw two dots to the right of the curved mark on either side of the fourth line.