Nifty·May 22, 2018You Don't Have To Follow All The Wedding Rules, But At Least Follow This OneIt's not that hard, I promise.by Terri PousBuzzFeed StaffFacebookPinterestTwitterMailLink Summer is almost here, and that means you're probably getting ready to attend approximately a metric shit-ton of weddings. Adam Ellis / BuzzFeed Not only does that get super expensive and potentially detrimental to making other plans, it also presents a seemingly endless list of rules you're expected to follow. There are rules regarding outfits, gifts, bachelor/ette parties — the list goes on. And while, yes, it's not a bad idea to familiarize yourself with the basic tenets of being a decent human at a wedding, there's honestly only one rule you really, truly, should follow. Siphotography / Getty Images I'm gonna tell you now, so please pay close attention: Please RSVP!!!!!! Food Network / Via theodysseyonline.com There! That's it. Basically, if there is an RSVP card in the invitation, send it back — before the date requested. If there's an online RSVP, fill it in as soon as you know if you can go. Charlotte Gomez / BuzzFeed Neither of these things are optional! They also have deadlines because people getting married have to have a headcount so they know how many people to pay for. Now, the RSVP card will probably have a spot asking how many people are attending. But if the envelope was addressed to just you (and not "and guest"), you do not get a plus-one. Tap to play or pause GIF Tap to play or pause GIF Walt Disney Pictures / Via giphy.com The RSVP card will probably have a spot asking how many people are attending, but this is not a last-ditch chance for you to bring that Tinder date who has a cute dog. It's mostly meant for guests whose spouse and/or kids were invited. It really means "Of the people included in this invitation, how many will be coming?" — not "How many randos are you bringing along with you?" If you RSVP yes, that means you have to go, barring any major personal or family emergency. Tap to play or pause GIF Tap to play or pause GIF Comedy Central / Via gfycat.com But if one of those emergencies comes up, you have to tell the couple you can't go. Tap to play or pause GIF Tap to play or pause GIF Paramount Pictures / Via giphy.com It happens! But telling the couple means they can try to recoup the money they'd be paying for your meal. It's also nice to also offer to pay for the cost of your/your date's meal if you have to bail super last minute, but if you can't afford that, you can't. And there you have it! Now, go forth to all those weddings, and conquer that dance floor*. Tap to play or pause GIF Tap to play or pause GIF NBC / Via popkey.co *And seriously, guys, make sure you send in your RSVP card.