What it all boils down to for me is having the enthusiasm to do something for enjoyment and being stimulated by what's around you. That's what photography does for me.
We spent a lot of time on the beach when I was young so I'd also take pictures of seaweed and crabs.
Training is such a vital part of preparation for a game, you really do train to play. It tops up your ability, like sharpening a carving knife. You can get away with not doing it for a while, as long as you have reached a certain standard of fitness.