A professional poker player has to contend with the fact that there may be several other players with similar abilities. The ability to learn new tricks is within both the armature and professional player, the only distinguishing factor is how much you know your game.
Learning a new thing with every poker game is what makes you a winner.
Waiting to read your opponents cards in order to have a winning strategy no longer applies because they will never let you know. It should be guided by science, art and psychology. Reading those who know how to read is even a greater challenge.