This is the scene where Atticus goes to defend Tom at the jail. The children notice he is gone and follow along. They end up making the mob realize there are a bunch of kids and so the mob disbands. This is person vs society because it is Tom and Attius vs what seems like the whole county of Maycomb.
This is the scene where Aunt Alexandria tell Scout she needs to be more lady like. She takes it as her job to do this to Scout, but Scout does not take this lightly, and does not appreciate what she is saying.
This scene shows Scouts self doubt when she gets told to be more lady like by Aunt Alexandria. It creates self doubt and internal conflict for her.