The idea of mirroring¹¹1 Chris Voss and Tahl Raz, Never split the difference: negotiating as if your life depended on it (New York, NY: HarperBusiness, 2016).  is to repeat the critical (often last) three words of what your conversation counterpart just said, to fuel the conversation.

I’m imagining this as clicking on a hyperlink in a conversation (keyword conversation): the three critical words are highlighted, and to continue the conversation, click on (i.e., repeat) those three critical words.

Some games (e.g., Wasteland 2) use the hyperlinked-words-in-conversation approach to drive conversation.