Step 1 Firstly just draw the basic outlines and mark the parts in which you want to shade and keep in mind about the light shades and all. Step 2 After you are done with basic outlines and single lined drawings, Start shading the parts with small and light stokes using any number of pencil varrying according to you if you want dark portrait use 4B pencils to 9B and if you want to use lighter tones use HB pencil to 3B pencil. Then start smudging using a piece of cloth or .your thumb.