You don't "feng shui" crystals.
Cleanse, then program these... google it, or there are lots of books.
You do not have to buy the books. you do not need to have someone do it for you.
Just go to Power Books and read the first chapters... usually, the cleansing and programming protocol are described therein.
To reiterate: crystals will not make it 'happen" for you. IMO, these serve as things to focus energies on; or may be used to magnify what vibrations you wanna send out or receive.
The vibrations of crystals have been documented scientifcally.
As it is said: everything is double-edged; like a knife is both a tool or a weapon of destruction -- it is our choice, our actions.
But, really, aren't they pretty?