You don't have to wash the person's hair with shampoo and conditioner, but it needs to be wet. Have the person sit in a tall chair so that their hair is at a comfortable cutting level for you. Use the handle of a rat-tail comb to create a neat part, then pull the hair into a bun at the top of their head. Clip the bun out of the way, or secure it with a hair tie. Leave the bottom portion of their loose. Make a V-shape with your forefinger and middle fingers. Close your fingers against a 1 to 2 inches (2.5 to 5.1 cm) wide strand. You can also use a rat-tail comb to measure out the sections. This will prevent you from accidentally pulling down too hard on it. Keep your hand against the person's back and avoid creating any angle by pulling it away from the back. Your fingers should be parallel to the part you made earlier and the floor. Do not twist your fingers upwards, flip the hair, or pull the strand away from the person's back. Doing so will cause a slight gradation. Use the length of your fingers as a guide. Make sure that you are using sharp, hairdressing shears for this; do not use ordinary scissors. Take a 1⁄2 inch (1.3 cm) wide section of hair. Add it to a few strands from the section that you already cut. Pinch the section between your fore and middle fingers, like before. Slide your fingers down until the bottom edge is level with the cut strand. Cut the strand until it is even with the already-cut strand. Let go of the hair, and take another section. Measure it up against the previous strand, and cut it. Continue in this manner until you have cut the entire bottom layer of hair.  Never pull the strands away from the person's back while cutting them. Keep them as close as possible to their back. Measure up the left and right sides in the front to ensure that they are even. Use the handle of a rat-tail comb to create another neat, horizontal part. Leave enough hair so that you can still see part of the previous layer beneath it. Gather the rest of the hair into a bun once again. Take a 1 to 2 inches (2.5 to 5.1 cm) section of hair from the new layer. Add a thin strand from the bottom layer to it. Pinch the strand between your fingers, then run your fingers down until they are level with the already-cut strand. Cut the new strand below your fingers as before. Measure the new strands against the previous ones, and the new layer against the old one. Always keep your hand close to the person's back; do not pull their hair away from their back. Keep going until you have finished cutting the person's hair. If you want to, you can wash the person's hair to get rid of any tiny snippets of hair. Blow dry the person's hair, then trim of any ends that stick out.
ابدئي بشعر مبلل. اجمعي الثلاثة أرباع العلوية من الشعر في كعكة. ضمي خصلة شعر من الجزء السفلي بين أصابعك. مرري أصابعك على الخصلة إلى حيث تريدين القص. قصي الشعر تحت أصابعك. اجمعي جزءًا آخر وقيسيه على جزء سبق قصه. قصي الشعر ثم انتقلي للقسم الآخر. أنزلي طبقة الشعر التالية. قيسي الطبقة العلوية على السفلية أثناء القص. قصي بقية الشعر متبعة الطريقة نفسها. جففي شعرها ثم أجري أي تعديلات لازمة.