What instances/quotes make Steve seem more like a “human” than any of the others throughout Monster?

The opening chapter depicts Stevie talking about the best
time to cry.  The fact that the opening is concerned with this helps to humanize him
from the start.  The construction of identity as one in a cell also helps to bring out
some level of humanity in him.  Additionally, I think that Stevie is understood through
the journal of his thoughts.  This help to bring to light his construction of a human
being who has perceptions and feelings about where he is and in what he is struggling. 
In chapter 3, when Stevie says that "living is the punishment," there is a firm grasp of
the idea that a life that is incarcerated is a painful one.  While he may be guilty of
something terrible that he committed, it is a condition that helps to bring to light
that he fully experiences the pain and struggle of such actions.  Myers fleshes out the
notion that Stevie is not an inmate as much as he is a young man in jail, and moments
such as these are reminders of this.