How to make an origami menko out of single square paper

(page 5)

7th picture of origami menko out of single square paper

07.

Apply the horizontal "valley-fold" of the step #6 and then unfold.

Prepare to rotate the paper by 90 degrees.

8th picture of origami menko out of single square paper

08.

Rotate the paper by 90 degrees.

Prepare to apply a horizontal "valley-fold" and then unfold.