These ever-so-expressive Facebook napkins allow you to state exactly how you feel about any dish you are eating. While Facebook may not actually have a 'dislike' button, the iconic thumbs up 'like' symbol is well known when it comes to demonstrating how much you approve of something.
With a button hole on either side of the napkin, you can easily show your appreciation or lack of appreciation by simply buttoning the napkin to your shirt facing the appropriate direction. You no longer have to actually say how you feel and potentially insult your host, or your mom, as they will be able to interpret your reaction to their food by glancing at your napkin.
These Facebook napkins make it easier for your to state if you "like" or "dislike" the food.