Here's a little story of my last encounter with 'interesting' in a sales communication and how to tackle it:
I met a young lady working at a museum as a PR. She explained briefly what it is she did for the museum. In exchange, I introduced myself as a game designer and LARP (live-action role-playing) writer.
Me: "... you see, this is how any organization could benefit from the live-action role-playing."
Her: "Mhm, that's interesting."
Interesting! I knew immediately she hadn't reached the buying temperature yet.