If the only crew member with gray hair is the FA, you might be flying a regional jet.

If your flight stops halfway to the runway and pauses for 20 minutes to reset a mess of circuit breakers, you might be flying a regional jet.

If you wake up at 4 a.m. to catch a hotel van to an airport where the terminal was once a filling station, and they have to herd the cows off the runway before you take off, you might be flying a regional jet.

If your FO misses every radio call because he turned the Metallica up too loud on his iPod, you might be flying a regional jet.

If your FO Asks you to sign his logbook because he just passed "a milestone in his career" and you look to see the total is 500 hours, you might be flying a regional jet...