What does Jimmie mean that it wasn’t common courtesy for a friend to come to one’s home and ruin one’s sister?

Which two sentences in this excerpt from theodore dreiser my brother paul are examples of characterization that suggest paul is a superstitious person?

How does tiresias prophecy affect the plot of the story ?

Something you may do if the weather's nice on sunday. -something you might not want to do this evening. -something you could go on aaturday evening. -something you could wear to a party. -somebody you might see in the next couple of days. -a subject you could study at college or university. -somewhere you might go on holiday .