Undermining the Strategies of Expert Players. Card counting and pattern recognition are skills that advanced players frequently possess, so it's important to regularly switch up your gameplarummy yes 41y style. You can keep skilled players guessing and interfere with their ability to read your hand by switching up your tactics—playing aggressively at times and more conservatively at others. The creation of uncertainty and the exploitation of errors. Because of this uncertainty, you may be able to take advantage of errors or blunders made by even the most experienced rivals.