The Mechanics and Rhetoric of Conversation : Page 58
That is the way to talk. A poor talker talks about a personal or special topic in general terms; a good conversationalist talks about a general topic in specific terms. Good talkers, for example, will talk about foot trouble in general and then cite many specific instances from all over — themselves, their friends, the newspapers — to establish their viewpoints. Garrulous, tiresome talkers will talk about their own or their relative's special foot trouble in general terms and
then from the one case conclude with a platitude, as for example, that foot trouble is indeed an expensive ailment. The motto for good conversation is: Keep the topic general, the reasons and proofs and examples specific.