@indigomoth - I can spot a simile a mile away but I still feel like I'm guessing a little when it comes to analogies.
I do love them in literature and films though. They just add a whole new dimension to something if you can spot them.
I think that's why I'm so fond of the book and film Life of Pi. The analogies in there were very subtle but at the same time the author basically explains them to some extent at the end so that you can examine them properly.