Indeed, but it should be made clear that these kinds of reads aren't necessarily (or likely) coming from physical appearances alone - there's all sorts of metadata to consider. For example, in the Dwan hand, the timing of Eastgate's call on the flop tipped his relative hand strength, showing that he had a very strong hand but also capping his range. A hand weaker than trips would have deliberated between folding and calling, and a hand stronger than trips with a weak kicker would have likely paused to consider raising. Of course, savvy players can fake these timing tells, but Dwan also knew that Eastgate was out of his depth (a tournament player making a charity appearance on a televised cash game because he'd just won the WSOPME and had yolo money), so he was unlikely to be doing this - more situational metadata.