You can learn a lot about Crazy Rich Asians just by paying attention to hands. You see them chop bok choy, stir noodles, and clean fish, and gingerly unload spiky durians from the back of a truck. Hands, too, flaunt giant eye-catching emeralds, lift — gloveless! — million-dollar earrings for a better inspection, and are offered scented bowls of water in which to rinse themselves clean (bowls offered by other, anonymous hands).