Fold the top outside corners down to meet the center line.
Fold the top left edge in to the center line.
Repeat on the right side.
Fold the top point down about 2 inches, keeping the point straight on the center line.
Fold the plane in half along the first fold line - your previous folds will now be inside.Rotate the plane 90 degrees.
Fold the top edge down to meet the center (bottom) fold.
Flip the plane over and repeat the same wing fold on the other side.
Fold the back of the right wing up by about 1/2 inch and fold the back of the left wing down by 1/2 inch (so the flaps point in opposite directions - this is what will make the plane spin).
Optional: attach glue tape, double sided tape, or a glue stick to the inside of the plane to keep the body together.