To Speak or Cringe. # booksignings #fear

So, in a few days I will be doing something I haven't done in a while, a speaking engagement, at our local library.  Can I say, I'm nervous as hell? Well, I am. My heart has not stopped skipping beats since I received the confirmation through email. I'm not sure what to talk about. Craft, storyline,  speaking in fear?

I have a lot of books so there should be enough info in my little brain to get me past an hour, I hope.

I don't want to sound like a braggart, pompous, or a hawker. My thought is, bring snacks, goodies and hand outs. I sure hope there will be a couple of people I know.

How do you handle the nervousness of public speaking?