In the story monster, Steve Harmon is being tried for being a lookout in a robbery/murder. The way that the story characterization is man vs. man. In this scene it shows man vs. society and it shows Steve coming out of the store and didn't give a sign that it was fine to go inside.
Man vs. Self
It shows in this scene that Steve is having to deal with the thought that people think that he was an lookout to a robbery/murder and that is man vs. self and he cant come to find a way with himself that he is innocent.
Man vs. Fate
In this part of the book it shows Steve try to make his outcome of this trial good for him so that he can show everyone that he's innocent. This shows why it is man vs. fate