1) If your hair is wet, dry it with a towel or hairdryer. You may apply some styling gel, a twist and lock gel or your normal hair lotion, provided that its not greasy.
2) Hold the afro-comb end of the tool, rub the hollow squares in a circular motion against your head. The motion must be in one direction so that the twists do not untangle. Be careful not to put too much pressure on your hair with the comb.
3) Continue to lock and twist your hair until you achieve your desired look, you will have twists on your head in a few minutes.