He did slipped, now and then. Harry could recognize the lapses after a summer of intensive etiquette training, but even when Riddle fumbled he was still well-mannered; it was just obvious he hadn’t gotten the training purebloods did. Riddle seemed well versed enough in the obvious things – table manners, when to bow versus shake hands verses kiss a hand, forms of address – but he missed nuances. At dinner he would pass the salt when asked but wouldn’t pass the pepper at the same time. When standing from a meal he’d place his napkin back on the table, rather than his chair, and he’d point with one finger rather than gesture with this hand.