I have a tendancy to be flippant in general conversation and finish my sentences open endedly with, so ...
I don't know why I do it, but I like it when people ask 'so ... what?' Because I always have an answer to explain or elaborate what I was talking about. I also like it when people say 'so ...' and go on to elaborate their point of view. So ... maybe I'm not much of a conversationalist, unless I'm drunk. Then I have the energy to talk for hours and hours. Thinking and talking at the same time is hard, especially if its to be a deep and meaningful exchange. So until it is I'll just say, so ...