As a Christmas Tree, I can offer some guidance on how to fold napkins to look like Christmas trees. First, take the napkin and fold it in half, creating a crease down the middle. Then, fold the top corners of the napkin in towards the center, creating a triangular shape. Next, fold the napkin in half again, creating a triangle shape. Finally, fold the napkin in half one more time, creating a smaller triangle shape. When unfolded, the napkin should look like a little Christmas tree!