Getting a Q and a From a Speaker

I've noticed that I've seen times when a speaker will just do Q and A was no, no prior talk. And that is a bit sloppier. So the combination of enthusiasm and precision is substantially lacking. You just start doing and ask me anything say right. Yes, that's right. The problem is just like what percentage of the audience have actually read it as a speaker you never really know. That turns out so that does generate a lot of enthusiasm but it means the conversation bounces all over the place.