With enough practice even players of modest ability may be able to bluff effectively. Bluffing is an important part of poker but can be costly if you get it wrong. Your bluffing should not be predictable to other players and must be apposite to the game, big bluffs for small pots may be a waste of your money. Remember the greater the number of players left in the more likely someone will call your bluff. Don't forget the double bluff and assume your opponents know how to play until you see evidence to the contrary.