[brailsafe]

I would bring up the topic, but not necessarily the book, in the way you described; face to face and certainly not on twitter because it's mostly an awful platform for deriving substance. Finding out how to build a dialog is a skill like any other, and often times the book is just a vehicle for its ideas that you need to run with. I'm not interested in talking about books at all, moreso how the ideas might connect with someone else's experience. Very occasionally I'll chat with someone about the actual prose or design of a book, but that's just an extremely niche topic of interest I think. Also there are still book clubs, where they do exactly this, but I've never tried them.