The instructions are quite detailed. If they give you any difficulty, please let me know . Fold the central 36 degree angles. Fold the edges of the pentagon. Only crease the top third of the fold.
Valley fold diagonally.
Only crease the top third. Valley fold the right edge to meet the intersection of the creases made in steps 3 and 5. Only crease at the top edge of the paper. Pinch in half. Unfold to the original square, white side up.