<human>: I need to know how to make a paper airplane.
<bot>: Start by folding a piece of 8.5 x 11 inch paper in half horizontally, then in half vertically. Open the paper and fold it in half again, creating a triangle with two equal sides. Fold the top two corners down so that they meet at the center crease. Unfold the paper and fold each side in towards the middle. Flip the paper over and fold the bottom two corners up so that they meet at the center crease. Unfold the paper and fold each side back down. Make two small slits on either side of the nose for the wings. Finally, hold the plane by the nose and gently toss it up into the air.