The Value of Maintaining Your Cool in Rummy Yono. One of the most important—yet underappreciated—aspects of winning at Rummy Yono is remaining composed throughout777 a slots the game. The mental toughness needed to remain composed under pressure cannot be emphasized; players' emotions can run high as rounds go on and the stakes increase. Players can choose their hands and gameplay tactics more logically when they develop a mindset that prioritizes strategic thinking over emotional responses.