Not finishing everything on your plateistock/bigjom
In many Asian countries, wiping your plate clean means that your host didn’t feed you enough. Leave a small portion of food on your plate, instead, to indicate that you’ve had your fill—otherwise, your host will continue refilling your plate until they run out of food!
Playing with your foodistock/BraunS
In Germany, cutting up your potato with a knife implies that you don’t think it’s all the way done. To avoid insulting your host, smash your potatoes with a fork, instead (plus, you’ll get better gravy coverage!). And no matter where you eat in the world, Napier-Fitzpatrick says, “if you refuse their food, you refuse their culture, which is refusing them. So you should at least try the food, if you can.” Be sure to follow these house guest etiquette rules when you’re a guest in someone’s home.
Swearing at the dinner tableistock/Geber86
It’s been said that in medieval France, diners would swear at a chicken before it was carved. It’s anyone’s guess as to why this was the norm. Perhaps doing so brought good luck?