My wife and I attended our caucus and while it was quite crowded, there were no issues. When we walked in, we noticed tables where people wearing campaign "gear" were sitting so we simply went over to one of these (My wife is a Carson supporter, so we went there). A woman gave her a "Ben" lapel sticker and then walked her through the process of getting her ballot and turning it in. I then duplicated the process to cast my Kasich ballot. I got my Kasich sticker after the fact, but anyone who wanted to could self-identify in this manner.
There were quite a few Trump T-shirts and hats around, but no one was intrusive; they simply wanted to show off that they were Trump people.
We did not stay for the other stuff, but on the way out we were stopped a couple of times by candidates running for local offices and given handouts and other campaign literature ... which was fine.
The whole thing had a kind of County Fair atmosphere and was great fun. It looked chaotic, but really was quite organized and orderly. We each had to show a picture ID in order to receive our ballot and they used the identical process that is used in general and primary elections in Nevada. We signed in the book and they compared our signature to the facsimile they had in the book before handing us the ballot..
We stopped to eat on the way home and ran into a small group of other caucus voters who wanted to talk about the whole thing ... They were mostly wearing Cruz stuff, which was fine; they still seemed to like us OK.
