Veteran travelers are a different breed and they know it.
Well, this one slick mofo strolls right up to the revolving door withtwobags.
Gets to the top of the escalator andkeeps walking.

Joshua Ness
Gets through the revolving door andkeeps walking.
They pack light, even for long trips.
They go about their business.

Joshua Ness
Nothing shouts rookie like indecisiveness.
They dont melt down with a delay or cancellation.
If you are traveling enough you accept that this will happen every now and then.
First-world countries: Dont change currency at the airport.
Any ATM will do.
Also, hold onto bills/change for next trip.
At the airport, they look more like window shoppers than psych ward escapees.
Being able to sleep almost anywhere.
I work in a hotel, and we can pretty easily distinguish the experienced travelers from the newbies.
Which is not how it goes at all.
Global Entry has saved my ass from having to rebook flights at least 4 times.
LAX is the worst.
Clear that shit in 5 minutes flat.
Plus, TSA-Pre status automatically.
They carry an emergency (read: delay) book, snacks and loose change.
They are most often courteous (politeness greases all sorts of wheels when traveling).
They follow signs and tend to pack light.
They dont take forever at the metal detectors and X-Ray.
They dont immediately unbuckle their seat belt and stand up as soon as the plane arrives at the gate.
A person who travels a lot no longer feels the need to talk about it.