When you board an aircraft, the routine is pretty much the same: hustling to your (hopefully assigned) seat, squeezing your carry-on bags into the overhead compartments, buckling your seat belt, and preparing yourself for take-off. How often, though have you paid attention to one of the most essential components of the flight? We're talking, of course, about the flight attendants.

http://www.fashionbeans.com/content/flight-attendants-reveal-the-first-things-they-notice-when-travelers-board-a-plane