~If you get on an airplane with a bag, be able to put it away, yourself versus thinking the rules of efficiency for boarding and deplaning don't apply to you.
~If you get on an airplane, be wearing clothes (as opposed to pajamas).
~If you get on an airplane with a cold, get on with tissues and hand sanitizer (and use them instead of sniffing and snorting).
~If you get on a plane with an infant, get on that plane with a pacifier or some sort to assist them/their ears with when the plane is ascending and descending.
~If you get on a plane with food, skip the onions-especially the raw, lingering ones.
~If you are waiting for your airplane, and you make a phone call, make it on earbuds or the old-fashioned holding-the-phone-to-your-ear way, instead of on Facetime or speakerphone.
~If you are going to get on an airplane, and you are on the phone, disconnect before engaging with the gate agent.
If you get on an airplane with a device with sounds, get on with earbuds or a headset (and use it).
In other words, if you get on an airplane with others, remember there are those other people on that plane...and their journey matters, too!