In addition, since it can be annoying and interfere with the game's flow, players should avoid offering uninvited advice or commentary on the moves of other players.rummy applications Handling Cards with Care and Avoiding Unfair Advantages. In addition, it is crucial for players to handle the cards carefully and not mark or damage them in any way. This includes avoiding any actions that can be interpreted as an attempt to obtain an unfair advantage over other players, such as bending or creasing the cards.