The piece started off with making six of the same piece. This starts off by folding the paper in half diagonally and then to fold it corner to corner to create a crease.
The next fold is to fold the triangle corners against the crease I just created. Since this is a fold that typically ends up messy for me, I turned to the beginning of the book to see if there was a trick that could help me. The books says "hold the corner in place with your left forefinger and make the crease with your right thumb" (Nakano 6). I'm glad to say that my fold turned out