Press the Green Flag. When the Tardis starts dancing, pres the space bar. The Tardis won't talk with you anymore after dancing, because of his highness. He'll play his music box if you click on him, just once. (Do this after he says GGOOOO!!!!) IF YOU ANSWER NO, he'll ignore you, and won't answer. Whenever it here's the answer no, the brain is set to ignore you. Can't do anything about ti. Sorry! When the Tardis turns brown, yes it will look like a chocolate bar.
Credit to @20breent for giving me the inspiration of Doctor Who!!!!