Question: Make marks on a paper with a pencil
Options:
Make sure the pencil is sharp.  This means that the lead/graphite center is exposed.  Hold the pencil nearly horizontal.  Bring the writing end into contact with a flat sheet of paper. Move the pencil around.
Make sure the pencil is sharp.  This means that the lead/graphite center is exposed.  Hold the pencil nearly vertical.  Bring the black lead/graphite into contact with a flat sheet of paper. Move the pencil around.
Answer: Make sure the pencil is sharp.  This means that the lead/graphite center is exposed.  Hold the pencil nearly vertical.  Bring the black lead/graphite into contact with a flat sheet of paper. Move the pencil around.