How does Scout show courage in the lynch mob scene?

In chapter 15, Atticus travels to the Maycomb jailhouse to wait outside of Tom Robinson's cell as a precaution to prevent any disgruntled citizens from harming Tom before the trial. Scout initially demonstrates courage and loyalty by following her brother as he sneaks out of the home during bedtime. Despite knowing that her aunt and father will disapprove of their actions, Scout refuses to allow her brother to go downtown alone and tells Jem,

"Then I’m goin‘ with you. If you say no you’re not, I’m goin’ anyway, hear?" (Lee, 150).

Scout, Jem, and Dill end up finding Atticus sitting outside of the Maycomb jailhouse calmly reading a newspaper. Suddenly, several cars arrive from the Meridian highway and a group of men quickly surrounds Atticus. As the children watch from their hiding spot across the street, Scout gets curious and demonstrates her courage by running out into the group of men when she overhears Atticus ask one of them a question. Everyone is astonished at Scout's presence, and she is completely unaware that she has run into the middle of a lynch mob that is willing to harm Atticus in order to murder Tom Robinson. Jem and Dill follow Scout out of their hiding spot, and Atticus tells Jem to go home. When Jem refuses to leave his father, one of the members of the mob grabs Jem. Scout once again demonstrates her courage by kicking the man in the groin and saying, "Don’t you touch him!" (Lee, 154).
Scout also reveals her courage by attempting to have a pleasant, casual conversation with Walter Cunningham during the extremely awkward, dangerous situation. Fortunately, Scout succeeds in getting Walter Cunningham's attention, and he politely speaks to her before telling the mob to leave. Despite the fact that Scout is unaware of the dangerous situation she enters outside of the Maycomb jailhouse, she demonstrates her courage by running out into the middle of the group of men, kicking a stranger in defense of her brother, and striking up a conversation with Walter Cunningham during an uncomfortable, awkward situation.