First rule of jumpseating is never talk about jumpseating.

Second rule of jumpseating is have all your paperwork in your hand and if the Captain doesn't want it, he'll hand it right back (or wave it off).

Third rule of jumpseating is save the personality until the door is closed, you're off the gate, and you've had a chance to feel the tone of the crew.

Sounds like your buddy broke all three rules.