Popsugar Love Wedding Guests Wedding Guest Etiquette 7 Things Guests Should Never, Ever Do at Weddings August 23, 2017 by Macy Cate Williams View On One Page Photo 1 of 7 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Don't forget to RSVP. And don't RSVP late! It's vital for the happy couple to get a head count so that they can plan their wedding with ease. Previous Next Start Slideshow Wedding GuestsWedding Etiquette