When two sides are far apart and don't believe any ground can be made, meetings are short and they use the media to capture the narrative. When the two sides are close and believe they can iron something out, they meet for hours and bite their tongues."They're still meeting! We don't know what they're saying or if it's anything substantive but I sure as heck believe this is a good sign...or maybe it's not we will wait and see since we have no clue what the heck is going on in there"
Pretty much one step away from someone taking a picture of the door that they're behind and having a panel on deciding if the door colour is in some way a concession by whichever side towards a new deal.
This could all blow up if there's a sticking point that neither side is willing to budge on, of course. But the long meetings are promising.