I've watched several Captains "over-engaging" the pax and found that most pax just seem to want to be left alone and be on their way. Uncomfortable situation for sure....some guys can pull it off but most pilots do not do it well. For every one passenger that enjoys the engagement I would say five could care less. I've had the pleasure of Deadheading on many DCI flights and that is even more painful to watch. They must get the same corny memos that we do. Just my opinion, but I think keeping the passengers informed is great, saying goodbye professionally at the door is OK, and if a kid wants to say hi to us in the cockpit, ok here are some wings and a baseball card. Fly the airplane safely and let the FAs and PR people do the rest. This engaging the passenger campaign is almost as laughable as the idea that passengers buy tickets on Delta because of the uniform we wear.