Avoid getting any game over screens for the whole game; reload from a save file if you do get booted out of the hotel or get sent back to your room. If you manage to accomplish all this, you'll get an additional scene after the credits (after being asked if you want to save your game) involving the arrival of a certain character.
Saving time
Because the game has a lot of text and game overs result in like lots of lost playtime, use the following tip for red questions. Before being prompted to ask the red questions, exit out of the screen and save the game. Then, go back in. A very short scene where your character's face and the other will appear on each screen will occur before going back to the red question list. By doing this, in the event you get a game over you can go back to the saved game file and just start again at the question list.