07/09/2013 04:07 pm ET

Bad Wedding Guests: 13 Things You Should Never Do On Someone's Big Day

Etiquette rules for wedding guests are basic and fairly obvious -- be punctual, polite and above all, have a good time. Yet somehow at every reception, there's always someone having way too much fun (wasted Uncle Seymour, we're looking at you) and someone who's having no fun at all (shoutout to the Debbie Downer pouting in the corner about the chicken).

On Sunday, we asked our followers on Twitter and Facebook to tell us the absolute worst thing a guest can do at a wedding. Click through the slideshow below for 13 wedding guest "don'ts" to avoid at your next Big Day celebration.

The Worst Thing A Wedding Guest Can Do

Keep in touch! Check out HuffPost Weddings on Facebook, Twitter and Pinterest.