Make a paper airplane by following these steps: 1. Use a standard size piece of paper, long side up. Fold the top left and right corners inward to form a triangle in the center. 2. Make two more folds along the left and right sides, about an inch in, and crease, then fold and crease the center as well. Bend the two side flaps down so that when you hold it by the center crease, the top of the plane is flat. Enjoy!