Sharing a Single-Player Game

I got a new game as an early Christmas present, and I really love it. The only issue is that it's a single-player game, meaning that it's harder to share the experience of the game with others. Yet, my brother and I have found a way. For a while, he watched me play. Right now, I'm watching him play. At some point, we might try splitting the controller between us, so we each have half of the controls. However we share the game, I'm glad we can both have fun with it and share the experience of playing the game. As with most other things I've done this last week, sharing this game with my family makes it more fun, even if it was only meant to be a single-player game.