Well, that's also addressed in Level 2,(as well as how to do a complete healing) I can give a 'brief overview' of it, but it would be a moot point to completely re-write it here, since it's already been documented elsewhere. That and most of my posts are for learning aids in furthering the practice.
In short, use the sword fingers on the base of the neck to open it up (C7 point) this is an 'energy distribution point' and should be opened before the rest of the head. Open the back of the head, top of the head, and forehead. Use the sword fingers to open the eyes, visualizing the pupils are round and the eyes are very clear.
As for the liver, open the part of the spine relative to where the liver is, then use the sword fingers on the liver and pull out the energy blockage with your hands releasing it to the Universe, and put positive, loving energy back into the liver.
Of course, there's a little more to it than that, yet that's the basic run-down of it. Check out Level 2, for further development of your healing. Yet, if you aren't quite there yet, don't rush either. Work at a steady pace.
Also mentioned in Level 2, you must be in a 'positive, loving state' or healing won't be as effective. And as always energy is Spirit--so without Love, Forgiveness, and Kindness it won't be as effective nor will you be able to Master healing fully without them.
This is Spirit's fail-safe, so that if you attempt to 'harm' or 'be powerful' with your energy, you will only be limiting yourself. Don't worry though, just flow with the love of the Universe and you're healing will be complete, since love is more important than the actual techniques. If you think 'send the feeling of love to someone', it'll be more effective than using a technique with an empty feeling.
Because of the Oneness of the Universe, when you send out love, you extend it, thus adding to the Whole. What you send out, you send to yourself. So, by healing others, you yourself are healed. A win-win situation.

~Z