Beta reader says my foreshadowing is too obvious. What are your favorite subtle foreshadowing examples and tips?
I've been editing my manuscript and got feedback from a beta reader that my foreshadowing is a bit too on-the-nose. So, I was wondering if you guys have any good examples of good but subtle foreshadowing? The kind that, once you actually know the whole plot and go back to re-read or check your annotations, you go "oooh, I see..." and not "yeah, duh."
Concrete examples from published books or general advice both welcome! Please and thank you :)