Draw a small dot for the top center point of the heart.
Draw two curved lines downward and outward from the top dot to form the left upper lobe.
Mirror the same curved line on the right to form the right upper lobe.
Bring both curves back inward to meet at the bottom point of the heart.
Add a slight inward curve on each side near the bottom to sharpen the point.
Trace over the outline to smooth any uneven sections.
Erase any construction marks if you used them.
Optionally add a center guideline and erase it after finishing the outline.