They can bet by numbers, like even or odd, by colors like black or red and many more.
Sure, it may to a couple of people; however, if you know what you do beforehand, it makes your experience a substantially easier and more fulfilling one. https://taigamepc.com/giai-tri/game-bai-rikvip-trai-nghiem-va-cam-nhan-cua-mot-game-thu-lau-nam/29