First-class fliers have a code. It’s subtle and usually comes with a glass of champagne. If you want fit in before you fall flat in a sea of stares, learn the unspoken rules—lest you mistake the amuse ...
A flight attendant can always spot a new business class traveler.
A premium cabin is like entering a different dimension, where the cues of a first-time business class traveler are quickly noticed by cabin crew.