To clarify, this jam is somewhat unlike the games like Mao or King's Cup or similar, where one is not allowed to be told the rules, and must infer the game's rules from observing play. Unwritten games are intended to be teachable.
Talking and teaching the rules of play (in a non-permanent way) is fine. However, recording the rules in video, audio or text embeds the ephemeral into concrete. Don't do that.