Questions that work: What's your worst fear? What are you allergic to? What is your favorite color? Are you introverted or extroverted? Do you like games? Do you have parents? Do you have any siblings? What is your favorite Disney Movie? If you could have any superpower, what would it be? Do you have your own show? If so, what is it? Do you like riddles? What is your favorite turtle breed? Are you nocturnal or diurnal? Are you nice to other robots?
If you ask him a question that's not on the list, he won't respond.
