You can hold each finger one at a time to help the entire body. (As demonstrated above) You will feel a pulse in the finger and when it's a nice, even pulse it means that it's harmonized. You can hold one finger only or work through each of them, one at a time. Use whichever side feels comfortable.
Use your breath as you're holding the fingers to help move the energy through the body. One nice exercise is to conciously exhale and inhale 3 times per finger and palm. This completes the 36 recommended conscious breaths per day.