Okay! So I just remembered a game I read about in a book once! It starts out with someone picks a topic, and starts out with a word relating to that topic. The next person has to say a word that begins with the letter that the other word ended with. You keep going with the same topic until someone cannot find a word relating to the current one, so a new topic is chosen. Just reply and say that you are going to change the topic, and put what it is. Then it will continue!