As you walk pass the chumps taking off their belts and shoes in the TSA airport security line, past the harried travelers opening their laptops and waiting for the scans of their carry-ons to be completed, it's probably best if you just smile casually and skim your fingers across the brim of your fedora in a polite salute. You're headed for the express line.
The line lurkers will wonder: Is he a diplomat? Special forces? Government agent? Who could possibly qualify to skip the security checkpoint and stroll to their gate with such savoir-faire?