Question

How can you use foreshadowing or flashback to add interest to your story?

Answer 1

Well you could use foreshadowing by having a character inheriting a mansion, and having him being all like "Ugh. It looks so rickety and old. It's like a ghost lives here!" and then it turns out the mansion was haunted.

Answer 2

http://users.wirefire.com/tritt/tip11.html

Hope this helps. :)