Start with your paper, white side up. Fold in half from both sides and unfold.
Fold the top and bottom edges into the center line.
Fold the two bottom corners up to the top center point and unfold.
Now fold the two top corners down to the bottom center point and unfold.
Fold the outside edges into the points shown and unfold.
Fold all four corners into the creases just made.
Still holding the model together, bring the outside edges towards each other.
Allow it to lie flat on the table. Fold the two top corners down to the crease and unfold.
Fold the uppermost flaps down. Then fold the tips inwards.
Fold the triangles back.
Your heart is ready.
