2. Don't be sloppy. While I would think this would be obvious, it is worth mentioning. Weddings are meant to be fun, at least I believe they are. The reception is a fantastic time to let loose, get your dance on, and have a few drinks. However, be a responsible adult. Don't lose total self awareness and control. Being "sloppy" isn't limited to how many adult beverages you throw back. Put a little effort into your attire and look. Girls, don't go beauty pageant crazy, but take some pride in your appearance. Guys, tame your mane and facial hair. Take a shower. Wear a suit, tie and jacket optional depending on dress code.
3. Speaking of dress code, follow it. Abide by what your invitation tells you, look on the couples wedding website before asking dense questions on their Facebook wall. Essentially, be responsible for yourself and your accommodations.
4. Go with the flow. As I said, weddings are getting more unconventional and customized. If the couple integrates something rather unique into the ceremony, go with it. If Great Aunt Myrtle gets schwasted and face plants, go help her up and don't make a big deal of it, and maybe encourage her to read this article before her next wedding. Odds are, something out of the norm will happen on a wedding day, misspoken vows, a trip on a dress, a torrential downpour post ceremony (guilty!). These things only become a big deal if your make them one.
5. Lastly, have fun. It is a giant party and celebration the the couple's love for each other, so enjoy it! Even if the band is a retro polka band of geriatric gents, go get your polka on. While a wedding gift is mandatory, the best gift you can give the love birds in that moment is creating wonderful memories with them.
Dance on!