[Albert Moulton]

I wouldn't show your hands at all unless you're called.

I suppose you might want to occasionally show a hand that supports an image you are trying to maintain, but I wouldn't show a mix of hands in order to "mix up" your opponents.

You will do better if your opponents incorrectly pigeon-hole you (i.e. as a "bluffer," or a "solid" player who doesn't bluff, etc.) because then you can occasionally exploit that image for maximum profit later.

For example, if you are perceived as tight and solid, then you can bluff in some big spots vs observant opponents that a loose player could not. And if you had a loose image, then you might get a big bet called down light when you wake up with a big hand.

Therefore, it is sometimes ok to show a hand or two that supports the image you are cultivating in order to encourage others to pigeon-hole your play in a way that you can exploit later.