The origami valley fold is a fold that is performed in every origami model that you make. Each fold you make is either a valley fold like this one or the mountain fold, which is basically folding the opposite direction of a valley fold. In a valley fold, the crease ends up being covered.
|Step 1: Get out a piece of paper.|
|Step 2: Fold the top half of the paper towards you and in front of the paper.|