Isolation of Miss Brill from the Outside World

In many stories, a major character trait of a protagonist is often presented by his or her own actions and conversations. However, in the ‘Miss Brill? the minor characters serve to present her major character trait. In the story, the minor characters around Miss Brill function to reveal her major character trait of isolation. Since Miss Brill always stares at outside world from her personal view point, readers have to interpret all the thing or event she sees. Thus, we should look at the minor characters carefully and then we can find out her isolation is revealed especially by the beautiful woman with the bunch of flowers, the ermine toque, the old invalid gentleman, and the young couple.
First, the beautiful woman is similar to Miss Brill. In the story, only a couple of sentences are used to describe the beautiful woman but she isn't a trivial character. Through her behavior, we can imagine what had happened before. It is clear that she seems to be nervous and angry. We can no...