I dressed well and would have blended in better with camo, or tactical attire. It is a open carry state, and I have a ccw but I was actually surprised by how many people were carrying openly. The group running the show almost gave me a militia vibe. I stayed for two classes today, first was supposed to be on grid down electricity, but that was switched to a how to carry a gun class. It was like a review of a ccw class, and the second was on ham radio. I have my tech license so it was also a review. The rest of classes today were on global warming-what there not telling us, picking prairie herbal plants, and group dynamics. I had no interests in those classes. Tomorrow has some classes I'm interested in, so I will give it a go tomorrow. It had more of a shtf type expo, instead of homesteading- self reliant type show. People generally seemed nice, and was a mix of all types and ages. Quite a few people brought their dogs, and children, which gave it a friendlier vibe.
Tomorrow I'll get a little more time at it and form a more rounded opinion of my experience.