That is a damn hard thing to answer. I've done speaking engagements, and I know I can sometimes be good at it and sometimes be absolutely terrible. I suppose if I had some coaching as to how to pull one off, my expertise is specifically in webcomics.

An easier topic for me to discuss, however, would be ad design. Fewer details and I'm just as good at it.

But I wish I was knowledgeable enough to talk about something more broad and fun.