If the guest doesn't touch anything, the role becomes automatic. So, laying back is an option and it doesn't harm the success of the mission.
At the end of the night one time, I had a ship all to myself. So, I was the right pilot. The rest of the roles happened automatically. Got 2 coaxiums.
Think about that. The default is the victory condition of 2 coaxiums with no human intervention. Which means every time a ship got only one coaxium, it was due to human error.