A basic example would be passing your intent to send healing to a friend through the stone. The vibration will change slowly in your palm; you will feel your desire to bring healing resonating from the crystal and the energy flowing from the crystal to your target. The simply beauty of this method is even when you have put the stone down and gone to take a bath or watch TV it will continue to do the work you charged it for. There is an ever growing amount of energy being drawn to it and sent from it. The sky is the limit though. I have left charged stones around in a protective formation in times of need to ward of negative energies. I have used charged stones to help maintain my sacred/meditation space. It is as simple as powering up a magic battery.