I've never read the book but here are some ideas:
1. Who are the characters introduced so far?
2. What are your first impressions on the characters?
3. What is the point of view used (first person, third-person limited, omniscient, etc)
4. What strategies did the author use to 'hook' the reader into the story in the beginning?
5. What are your predictions for the rest of the story based on what you've read so far?