Bait.
A miniature story question.
End a chapter by quickly framing a suggestion for what might follow, if the reader gets lucky. Michael Connelly does this in one of the beginning chapters of The Scarecrow.
Connelly's protagonist invites a pretty trainee out to a bar for a farewell party. Though the protagonist gives the reasons she won’t show, the reader is already lasciviously imagining that she will, and that in just a few pages, there will be some mighty juicy reading.
This technique doesn't require a new plot line. It doesn't require a dangerous setting combined with an obvious cliffhanger. All you have to do is scan your text for something that suggests the story might go in a direction the reader will find immediately satisfying. Allow your closing situation to create a tiny story question.
Be sure to allow the situation to do the asking. One thing about bait. I've never seen a successful fisherman calling out across the lake, "Hey fish, check out this big fuckin' worm. It's gonna taste real good. I promise. Just come check it out, okay? Fish?"
Well, I have. Scratch that. Just don't overdo it.
The Connelly example is perfect because he doesn't overstate the possibility of a hook up. The protagonist doesn't give a four paragraph description of the pretty girl's breasts. He doesn't drool, or give a decade of exposition on the nature of man and woman. He invites her, dismisses any likelihood that she'll show, and the chapter ends.
But you can be damn sure I turned the page.
