The Leap of Faith in-game walkthrough will guide you through all the choices in the game, with hints of when to check your phone, activate bonus scenes, getting traits and reputation points with each character.
The Walkthrough also contains additional extra renders, animations, and scenes deemed not good enough for the final cut.
To top it off, there's also a dev commentary with goofs, mishaps, and explanations for some of the scenes and events in the game.