Keeping an eye on the cards your opponent is discarding & picking up from the discard pile is one way to counter their moves. Players can learn about opponents' tactsatata kingics & modify their own gameplay by watching how they behave. Being aware of potential melds that opponents might be practicing is another way to counter their moves. Players can predict their next moves & take action to block or interfere with their strategies by monitoring the cards their opponents are gathering & discarding.
