Tells are affectations, body language and oral clues that you and your opponents at the poker table display during the course of the game. Good poker players are always closely observing their opponents, looking for tells or ‘getting a read’ on the types of hands they most likely play as well as their betting patterns.
Poker players who prove to be successful in cash games of No Limit Hold em Poker still have a tough time in being successful poker tournament players. The skills that you use for cash games are not not necessarily applicable when you join poker tournaments. A poker player must have a mind set fit for the tournament and also think of strategies to get to the final table and win.