Bearing in mind this is a trade show and I went on the last day I wouldn't have been at all surprised if they had had enough of chatting, I wouldn't have been surprised if they wondered why this strange woman was talking to them as if she knew them and I wouldn't have been surprised if they'd decided to keep their little trade/show secrets to themselves.
Well not one bit of it. They were all charming. All generous in their time chatting to me. All far lovelier than I had thought they even would be.