Facial hair like beards and moustaches are a
little bit different to draw than hair on the head
because it's generally shorter and coarser.
Let's draw this dude's beard
Lighten spots by erasing the shadows you drew
the same thing with facial hair as with head hair, and
that's to draw in the direction that the hair is going.
With short beards like this one, you're going to have to
make a bunch of little short strokes with your pencil.
You can create shadow shapes you see in the beard, but
these shapes are going to be made of short little
strokes. Make darker strokes for dark patches in the
facial hair, and lighter strokes for the lighter parts
of the beard. Follow the direction that you see the hair
going. On this guy, right under his mouth the hair looks
to be fanning out to either side, so I made little
strokes that are pointing that way.
beard isn't all one tone, so I had to vary the heaviness
of the strokes. For really light patches of hair, I
lightly erased the lines I had drawn.
beards will be made up of longer strokes, but they'll
still be individual strokes you'll have to draw. But as
when you draw hair on the head, when you draw beards
there is no need to draw every single hair. If you stick
with shadow shapes created by the hair you'll just have
to draw the shapes, and not each hair.
technique used on beards and moustaches could also be
applied to shaggy eyebrows, as long as you draw in the
direction the hair is going.