Rob Alexander depends on the NPCs and the game and context and shades of gray etc etc.
But what I’m thinking about in, say Apocalypse World itself is the difference between:
* Pulling a name off a list and giving the character, oh, one thing they want
and
* Getting accustomed to the moves telling me what happens at 7-9 except this one move and then, oh shit, am I living up to the agenda/principles/moves, does it actually serve the scene, oh gosh what about my fronts, am I being true to my prep? And so on.
In the first case, with experience, I actually go quite a lot further with my NPCs in Apocalypse World now. In the second case, I’ve just gotten better at the move and the lift doesn’t feel so heavy any more.