Start just outside the top-left dot
Draw a straight line through the top-left, top-middle, and top-right dots, extending past the top-right
Draw a diagonal line down-left through the middle-right and bottom-middle dots, ending below and left of the bottom-left dot
Draw a straight line up through the bottom-left and middle-left dots, ending above the top-left dot
Draw a diagonal line down-right through the center dot to the bottom-right dot