Originally Posted by
yawdamp
You must be using the 'Jedi mind trick' to jump without CASS. I commute and my ugly mug (face) is checked on CASS all the time.

I never tried to to sit in the cockpit. You call and meal list yourself. If there are seats available then 9/10 your gonna get a seat. But, the decision rests with the captain.
I'm a left seater for a 135 operator and I've yet to decline boarding to a fellow pilot (CASS approved or not) if there are open seats.
Usually you have to call and list a few days in advance but keep in mind each carrier has their own rule. If you list at the counter or call last minute expect the SSSS on your boarding pass.
Overall introduce yourself to the Captain and FO, thank them for the ride and thank the lead FA. Afterall it is a privilage not a right to hop a ride.