For example, in Chapter 2, there's a moment where Jael is castigating herself for bonding Jacob. In my mind, I know how she looks, how she's clenching her fists and finally thumping her knuckles against the wall. On the other side of the wall is Jacob, sleeping. The punch is intended to punish herself (her hands aren't completely healed) but they're also a subtle frustration from the bond magic that she and Jacob are separated. Jael isn't even aware of this latter reason for her punching the wall. She only feels the first. But both are there. My task on the revisions, is to put all that stuff out there. To get it onto the page without bogging the story down.
It sounds like a lot of work and it is, but when it's done, those kind of grace notes are the details readers pick up on and remember.