PIC probably has lap belt on.
Smoking...that's probably a European thing.
They're flying a visual approach, why have the plate tacked to the yoke. You review the important information before hand and fly a visual. Downwind, base, final...no big deal.
727 does need an FE.
I don't know who shot the video but perhaps it was the FO's, and he does have 4 stripes so he is a Captain, last flight.
Toll booth...a good cue on on the visual approach I'm guessing.
Telling jokes or whatever is just the usual banter in the cockpit. Perhaps it is non-pertinent chatter, but after you've flown awhile, you find yourself doing it.
They did run their checklists and acted professional in my opinion.