You can start by setting the table with a tablecloth or runner in a festive pattern. Then, you can add some red or green napkins, along with red or green plates. Next, you can add some Christmas-themed decorations, such as miniature Christmas trees or Santa Claus figurines. You can also add some fresh flowers or greenery to add a touch of nature. Lastly, you can finish the look by adding some Christmas-themed candles or a centerpiece, such as a wreath or garland.