It's interesting how Bobby Shaftoe knows Glory has his child. He seems completely sure, even know he can't really be sure. Yet he's willing to find his way back to manila for Glory and the child.
It's also interesting to see how the ancestors' personalities show up in their descendants. Randy has similar social leper moments like Lawrence Waterhouse. Amy and her father have very Bobby like qualities.
I was highly amused at Amy's way of dealing with her emotions. Namely, running Randy off the road. She so tough but, in a very realistic moment, shows her insecurities about Randy's affection.