A basic "do" is to discuss house rules with other players in an open manner prior to the game commencing. Since rummy has many variations, it can help to avoid confusion and arguments during play by outlining thram slots 1-3 vs 2-4e rules for melds, jokers, & scoring. It also goes a long way toward making the environment fun for everyone involved if you keep a positive outlook, regardless of the outcome. In contrast, players should be aware of a few "don'ts" when playing rummy. For example, don't talk about your hand or share your strategies with other players while you're playing; this can divert their attention & make the game less enjoyable.
