Swap!

She sat looking through the thick glass pane at the tramp on the platform. "Him?" she thought to herself, not that bad, she decided. She was already bored of the nylon cushions of the first class compartment. The generous serving of bacon in her breakfast wasn't easing the boredom too much.

She she looked out once again, at the platform- an old lady knitting a bright sweater, the young man in a black coat holding a bunch of roses, a plump woman screaming at her two little brats, the old man at the bookstall. Wait! "Him!" she exclaimed, causing her grandmother to nearly spill tea over herself.

She concentrated her gaze on the bookseller for a minute looking at him intently, studying every little crease on his face, his trimmed grey-white beard and the berret slung over his forehead. The unwitting old man gave a tiny jolt, waking up fully and sitting upright. He began to look around himself all of a sudden as if to take in his surroundings. He stood up after a moment smiling in childish glee "buy your lady a book, mister!" he said to the young man while throwing a glance at her.