Widow's Son is right on, especially his last sentence. I've experienced that many times.

I'll just throw in my dos centavos below:

You can usually pre-board, just ask the gate agent. You don't need to wear your uniform, just dress decent. The company tells us not to sit in the emergency exit row on the -700 that has like 10 feet of leg room. There's only two seats like this on the plane and the tall pax go for them. You're risking getting your neck rung by a passenger, flight attendant or both if you sit there. They also tell us not to sit in the front of the plane. I always sit at row 15 or aft.

That's about it. There's a LOT of commuters at Southwest so we're very jumpseat friendly.

S.B.