Start with a square piece of paper
Fold the paper in half diagonally
Unfold it
Fold the paper in half diagonally the other way
Unfold it
Fold the top corner down to the center
Fold the bottom corner up to the center
Fold the left side inward toward the center line
Fold the right side inward toward the center line
Fold the top left and top right edges outward slightly to round the top
Fold the bottom point upward a little to shape the heart
Crease all folds firmly
Adjust the shape as needed to make the heart look even