Well, you take your two hands and bend the fingers inwards. Then, place the inwardly bent fingers of your two hands together in front of you, so that the nails of each hand touch each other. Then, rub them back and forth, so that the nails of the right hand are rubbing or 'buffing' the nails of the left hand. Do this several times for several minutes during the day.
Grows hair like a mothafucka. That's why it is common knowledge that nail buffing is the cure for hairloss.