PROMPT 1
The other world I would choose to reincarnate in would basically be a copy of what we have today, just to make sure that it would be at least somewhat habitable. To introduce the game I think I would have to start with finding some companies that manufacture things that are similar to hockey gear. I would at least need a few hockey sticks, skates, pucks and nets. Then I would just go to wherever I find ice and start playing by myself, until some people would come and ask what the heck am I doing. Then I would just equip the curious people and start teaching them the rules and make sure they will also introduce their friends to this sport.

The rulebook version I would introduce them would be a bit different. I would get rid of offside. I would also just not tell them about fights. I would never tell them about different point systems than 3-2-1-0. Goalie gear size would also be a more limited and/or the nets would be a bit bigger.