Click a piece that is vertical, but with a big triangle sticking out on your right side.  Your right side is on this side --->  There should be a large triangle sticking out on that side
page-I.png page8-218.png page7-33.png
page-I.png page7-33.png page5-27.png page1-118.png page6-172.png page8-218.png page4-240.png page7-16.png page6-160.png page8-192.png
That is completely wrong!  De-select it!