I finally got a mtb that is worth something, which of course means I want to use it like 50 times more than the bike I have now. So when I hit the trails on much more frequent trips, I don't want to look like the guy who has never been riding before. I have ridden quite a bit, but I don't have anyone to go with or teach me the basics...like trail etiquette. My question is obviously, can you guys give me some do's and don'ts on the trail. All input would be very much appreciated!!