In fact they say that you should be seeing roughly 10% of the flops. Then before they know it they are sucked in with the second best pair and lose their money. One reason people lose is simply because they play too many hands before the flop. Once you know the rankings of hands and the betting structure for Texas Holdem and you are ready to play, you need to know which two cards (known as your hole cards) you should stay with or fold before the flop (the first three communal cards).