Her sister, miss watson, a tolerable slim old maid, with goggles on, had just come to live with her, and took a set at me now with a spelling-book. she worked me middling hard for about an hour, and then the widow made her ease up. i couldn't stood it much longer. then for an hour it was deadly dull, and i was fidgety. miss watson would say, "don't put your feet up there, huckleberry; " and "don't scrunch up like that, huckleberry-set up straight; " and pretty soon she would say, "don't gap and stretch like that, huckleberry-why don't you try to behave? " in at least one hundred words, explain how twain uses descriptive adjectives to characterize miss watson in this excerpt.