Me, to neighbors I haven't seen in a while: "Hi, how are you guys doing?"
Neighbors: "We're good, how are you?"
Me to me: *don't mention [exciting thing about book.] They'll think you're just talking to them so you can tell them about it*
Me: "Doing great!"
Neighbors: *nod, smiling*
Me: *don't say it* "So... um, yeah, everything's good!"
Neighbors: "Well that's gr—"
Me: "Oh! And did you know [exciting thing about book] so what have you been up to how are your kids?"