Christian Charisius/picture alliance via Getty Images
When flying first class, etiquette is key for blending in with the opulent crowd — especially if you've never been in a premium cabin before. The same goes for business-class etiquette.
Christian Charisius/picture alliance via Getty Images
When flying first class, etiquette is key for blending in with the opulent crowd — especially if you've never been in a premium cabin before. The same goes for business-class etiquette.
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