First time flying first class? Avoid being the most annoying person in a premium cabin with these 4 etiquette tips

First class is about indulgence, and business class is about sleeping and working comfortably, flight expert Gilbert Ott says. Christian Charisius/picture alliance via Getty Images "When you wake up, and someone is looking over your space, it's odd," Gilbert Ott says. Ott is a seasoned first-class flyer who shared a few tips on etiquette in upgraded cabins. Here's what you should know before setting foot on your first business- or first-class flight. When you board your inaugural first-class flight , act like you've been there before. Accept a glass of bubbly without asking what it costs, stick to the overhead bin space above your seat, and please, don't hover over your fellow upgraded passengers. When flying up front, etiquette is key for blending in with the first-class crowd, especially if you've never been in a premium cabin . The same goes for business class .