"Human natur' " said the night-watchman, gazing fixedly at a pretty girl in a passing waterman's skiff. "Human natur' " He sighed, and, striking a match, applied it to his pipe and sat smoking thoughtfully. "The young fellow is pretending that his arm is at the back of her by accident," he continued; "and she's pretending not to know that it's there. When he's allowed to put it round 'er waist whenever he wishes, he won't want to do it. She's artful enough to know that, and that's why they are all so stand-offish until the thing is settled. She'll move forward 'arf an inch presently, and 'arf a minute arterwards she'll lean back agin without thinking. She's a nice-looking gal, and what she can see in a tailor's dummy like that, I can't think."