>>3352> Dumb question, do you have to know Japanese?No, only if you want to play on tenhou.net or ron2.jp.
> What if I did, say, three hours a week?It would be only a bit longer.
> I don’t want to be a master, I just want to have some funI can only recommend to interleave playing with reading about yaku, rounds and tiles. Playing with bots isn’t fun, so learning a minimum to play online would be the first step on the way of having real tanoshii.
> Also, do you need to stay completely focused while playing Mahjong, or can you do a move, go do something for a few minutes, and then do another move?Mahjong is gambling, not a chess/go/shogi-like game. If you’re playing with people you must be able to make the most of decisions within three seconds (this is required for online play).