Ok so I win a couple of pots, with out showing down at a table. I couple of them Im pretty sure i was behind in; some of them i know i had the best hand.

When is it proper ... er scratch that, im trying to make money

When is it (if it is at all) beneficial/advantageous to show my cards when the hand doesn't go to show down?

Show the big PP, bluff, sets, etc...?