What words serve as clues for readers of comparison/contrast writing?

What is the main idea of this paragraph

Which sentence in this excerpt from frances hodgson burnett’s a little princess shows indirect characterization? it was just then that miss minchin entered the room. she was very like her house, sara felt: tall and dull, and respectable and ugly. she had large, cold, fishy eyes, and a large, cold, fishy smile. it spread itself into a very large smile when she saw sara and captain crewe. she had heard a great many desirable things of the young soldier from the lady who had recommended her school to him. among other things, she had heard that he was a rich father who was willing to spend a great deal of money on his little daughter. "it will be a great privilege to have charge of such a beautiful and promising child, captain crewe," she said, taking sara's hand and stroking it. "lady meredith has told me of her unusual cleverness. a clever child is a great treasure in an establishment like mine."

What does this dialogue reveal about louise? she follows some of the spiritual ideas of the pueblo people. she is a devout follower of the catholic church. she often turns to father paul for support and guidance. she wants teofilo to receive his last rites from father paul.