In the Ultra the conversations may develop when the pax come to serve themselves coffee or soda from the little micro-galley just behind the cockpit, and you check with them on the cabin temperature etc.. I've noticed that the rare chatty pax who won't stop talking tend to be the owners who are pilots (typically a private with their own Lancair or something) and want to start talking flying. Sometimes you have to figure out how to diplomatically cut them off to get back to work.
I agree most pax just want to be left alone (I always think of the Seinfeld episode were Elaine is terrified of a company-paid limmo ride because of the fear of having a chatty limo driver, which is how I sometimes feel when dog-tired and with a hotel shuttle or taxi driver who won't every shut up), but alot of elderly pax (esp. older women) seem to appreciate a mid-flight checking up, since some of them don't like to ever leave their seats.
I agree most pax just want to be left alone (I always think of the Seinfeld episode were Elaine is terrified of a company-paid limmo ride because of the fear of having a chatty limo driver, which is how I sometimes feel when dog-tired and with a hotel shuttle or taxi driver who won't every shut up), but alot of elderly pax (esp. older women) seem to appreciate a mid-flight checking up, since some of them don't like to ever leave their seats.