Using Chiaroscuro
Chiaroscuro replies on you being able to create tonal values on a page which have enough difference between them. For example, you need to be able to create a “dark dark” and a “light light”.
Depending on the medium you are using, there are different ways of achieving this. For example if you are using graphite (pencil) then you might create dark darks by cross hatching, repeat shading, intense pressure etc etc, and you might create light lights by using the pencil very softly – or even leaving the light of the paper to shine through. If you are using ink, you might like to use your ink undiluted for the dark darks, and diluted for the light lights.
Take a look at these resources to help you explore Chiaroscuro.