
Boarding resembles a mere shuffle between jet bridge and seat. It is more of a hasty evaluation, part welcome, part logistics, part safety scan, and is written on the cabin door, performed in the few seconds it takes a traveler to pass through the door.
The flight attendants are conditioned to receive dozens of minor indicators simultaneously: who requires assistance, who may take time before clearing the aisle, what may turn out to be a safety concern after the airliner door shuts. A majority of it is routine and much is intended to ensure that the flight continues smoothly.

1. Whether a person seems to be impaired or not
Among the initial checks is whether a passenger appears to be drunk or not fit to fly. The garbled salutation, shaky legs or an abnormally loud manner of demeanor will be noticed at a glance since there is no longer an option of sitting down once the aircraft takes off. As herself as a flight attendant Venezia Macias said, we seek signs of drunkenness, suspicious person, or someone in need of special care, such as old people, moms with babies or children, or handicapped people.

2. The “energy” at the door
The demeanor is registered among flight attendants calm, anxious, combative, or checked out. The returned hello is a sign of basic cooperation; the unwillingness to cooperate, the rudeness of intonation or some obvious irritation may indicate an issue that will have a later flare up. Groups are another area of concern to the crews, particularly couples or adults who are traveling with minors, as tension usually manifests first during the squeeze of boarding.

3. Who might require additional support?
Breathing is limp and labored, a parent is carrying a toddler, or an older traveler is moving slowly alters the assistance offered by the cabin team sequences. Crews silently strategize on who might require time to settle down, where the bottlenecks are likely to occur and who to be assigned their seats without wastage of time. It is also due to the fact that passengers who will inform about the disability or severe anxiety early are more likely to receive more specific support.

4. Who appears to be able to assist in an emergency
Crews also write who might present assistance, in addition to identifying who requires it. Flight attendants search to find able bodied passengers who seem to be physically fit to help in case an emergency arises and would need to be lifted, guided, and given directives in a short time. It is an unarticulated aspect of the door greeting, a temporary mental map of the cabin helpers and high needs travelers.

5. Oversized, excessive or clumsy carry-ons
Bulging rollers, several totes, hard cases and overstuffed backpacks are observed before they get to the aisle pinch points. It is not about aesthetics; it is about boarding speed and capacity of the bin. Dimensions are also not implied on most airlines American Airlines claims that a carry-on bag in the form of a bag cannot be bigger than 22 x 14 x 9 inches with handles and wheels, so a bag that is clearly larger is a good indication to anticipate a delay when the bins start filling.

6. Hidden whether one is taking personal to the overhead bin
By observing the first up the flight attendants can often determine the lack of bins. When the small backpacks, purses, or coats carried by passengers are hoisted into the overhead to allow them to increase the free space in the foot area, bigger bags have no room to go. According to the bin-etiquette reporting of Condé Nast Traveler, it is common that the travelers take all their items to the overhead rather than putting the personal ones beneath the seat in front, as it is supposed to be placed.

7. The Tetris moment of loading overhead-bin: how a passenger copes
Initial few bin-handling interactions tell a lot: either a person is efficient loading, blocks the aisle rearranging, or has a half-empty bag. Other aircrafts have to fit bags on their side or lay flat and crew will tend to rectify it fast so as to save on space. The Travell + Leisure advice on stowage points out that best practice is usually wheels-first and vertical, so when one of the passengers is stowed sideways, it will tend to slop over into a bin that inexplicably refuses to close.

8. Whether one is willing to sit down fast
Those who already have the necessities on them, ID stored away, seat info gathered, small items packed up, will be flowing through the cabin with fewer stops. Boarders that are still re-organizing, searching for headphones or attempting to repack at row level hold everyone behind them. This is not perceived by the crews as a character defect, but rather as an operational risk: aisle congestion is one of the most convenient means to lose an on-time departure.

9. Shoes that might make an evacuation difficult
Shoes are a warning, not a style judgment. According to one of the flight attendants who spoke to Reader Digest, heel has been known to influence the speed at which a person can move and since flip-flops leave the feet uncovered, during an emergency evacuation. Shoes also indicate people who can have difficulties with balance when carrying bags or walking on a busy aisle.

10. Dressing styles that are not very practical during a flight
Flight attendants observe clothes that do not allow free movement, a cumbersome way of going to the bathroom, or leaving the skin bare in a way that it may not be comfortable to be in a small plane. They also know that certain clothing makes it hard to evacuate, short skirts, extremely short shorts and flimsy shoes may complicate a move on a slide or other move at light speed. The scan is predetermined, to a great degree, by comfort, mobility, and the capacity to act upon safety guidelines as soon as possible.

11. Compliance with instructions-particularly boarding order
Rule-testing is early discovered, and it is most conveniently found in boarding. Jumping queues, bypassing zones, debating over bins or planting in a different seat causes friction which becomes twice as much down the aisle. The attitude of boarding groups being merely a suggestion is a cabin issue soon enough, as it is an indication of future passenger conduct where he or she is questioned to stow, move out of an exit row, or adhere to safety measures.
The process of boarding may seem to a passenger as a sea of seats and overhead bins. It is the most informative moment of the flight to a flight attendant, as the crew is informed on the kind of person requires assistance, potential issues, as well as the manner in which the cabin will operate smoothly when the door shuts. The majority of what is perceived is utilitarian. It is less about judgment than preparation: it is ensuring that the aisle flows, bags are properly packed, and the cabin is ready to meet whatever flight has to offer.


