Story Beginnings

As I read the Boyle's "Caviar" I notice that there are things that are continually left out that just happen to phase into the story later and the reader is left non the wiser until that moment.  It constantly had me looking back to see if anything was mentioned about the cheating, or the lust from Nat to Wendy. Each time I was always looking back and always catching how clever Boyle is in his writing, it gave me elements and ways of writing to use in my stories in the future. Writing that make me constantly think as a reader always has me coming back for more.