These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Chance: "I'm heading down to the hotel." Stumpy: "Well if'n you don't comeback, me and Dude'll have us a good cry."
John Wayne calling Walter Brennan a treasure and kissing him on the head.
He Really Can Act: Despite appearing to call for nothing more than John Wayne's typical performance, the film lets him show more range than usual, as Chance has quite a few vulnerable moments where it's clear how worried he really is about making it through the standoff.