Many people find that if they rub their hands together vigorously first they can feel energy more easily. After rubbing your hands together vigorously to sensitize them if this helps you be more aware of energy.
Run your hands over your own body or that of the person wanting a treatment holding your hands about an inch away from the physical body. Feel for hot and cold spots in the energy field.
Pull out and throw away anything you feel intuitively that you should pull out and envision healing light filling any place where you remove blocks or that feels empty or that you feel needs it. Combing and fluffing the aura with your fingers as though combing hair can also help clear and lighten the aura.
You can also feel for the energy of the Chakras and encourage them to be open and clear and be well seated in the central energy channel. If you feel sticky or dark energy as you do this you can give it to Spirit, the Light, Earth to be transformed.
In addition to pulling out blocks and overcharges in the energy field. Visualize and allow spiritual healing energy to flow freely and fill and charge the person or other, being treated do not try to do anything just allow it to happen. When you visualize spiritual healing energy, you are not using your own personal energy.
This is an even more powerful exercise if you are attuned to Reiki and using the Reiki energy for clearing and healing. Using the universal spiritual healing energy is more effective in any case.