Ask anyone who illustrates or does hand drawn sketches, the hardest part of the human body to draw is the hand, well at least for me it is one of the most difficult. It took me some time to learn the basics. After you have learned the basics, the next step is to draw the hand in action. However, first, we need to define what freehand drawing means.
What is Freehand Drawing? The act or the art of representing any object by means of lines and shades; especially, such a representation when in one color, or in tints used not to represent the colors of natural objects, but for effect only, and produced with hard material such as pencil, chalk, etc… A Freehand drawing is simply a drawing done by hand without the use of tools or aids such as templates, stencils or tracing.
I love how the artist of the pictures below have rendered their respective art works. The subject was a plain hand, but with their pencil strokes, they allow each drawing to come alive. It’s very inspiring!
Good question, render here means creating, shading and texturing of an image. 
