Clever is awesome for getting us sharing on this topic. We should break out a "Two-way Traffic" thread, where we can help each other out with these nuanced questions we've always wanted to ask, but never had the guts to.
VM, perhaps this is pure midwestern girl queer thought, but if a well-educated, cute cowgirl who rocks the denim mini and huge clunky boots were to tip her hat at me, well that would be just about the end for me. There's no heart that wouldn't melt at that.
Clever, happy to help, but keep in mind that we all have very different experiences. It seems to me, however, that you are getting a good feel for what could work for you, if you pick out the points that resonate with you. The key to not looking like a dork is to be natural, and use your non-verbal communications to rock what represents your personality.
Considering all the nodding complexities, the most important thing, in my opinion, is to confidently express in little ways, every day, what honor and respect mean to you. Should you succeed in this, nobody will question you as a man of integrity.
I agree with a previous post that fights are really rare. In fact, the nod dispatches almost all possibilities of conflict. Unless you ignore somebody asking you a direct question, the head nod can get you through a lot of social awkwardness.
Now, if only somebody could help me to figure out the lifelong dilema of how to prevent nylons from rolling at the waist, and leading to day-long extreme discomfort, all would be well in the world.