How to make a simple 3D origami cup II

(page 7)

11th picture of simple 3D origami cup II

11.

Apply diagonal "valley-fold" of the step #10 and then "unfold" .

Prepare to apply another diagonal "valley-fold" and then "unfold" .

12th picture of simple 3D origami cup II

12.

Apply diagonal "valley-fold" of the step #11 and then "unfold" .

Prepare to turn the paper over.