There's a lot of information on the internets about proper trail etiquttee but we think that Bolder Mountain Bike Alliance has nailed it with the following advice so we are not going to reinvent the wheel. Check out their website to get more information.
Smile. Great. Nod.
Every user on the trail is a fellow nature lover. Be friendly and expect to see other folks around every corner.
Don’t block the trail
When taking a break move to the side of the trail. Also, uphill riders have the right away.
Stay on the trail.
Do not go off trail (even to pass), create new trails, or cut switchbacks. Narrow trails mean less environmental impact and happier critters.
Don’t use wet trails.
If you are leaving prints (hoof, tire, or boot), the trail is too wet to use. When approaching muddy spots, go through the center of the mud to keep the trail narrow.
We are also going to borrow from Outdoor Magazine to sum up our stance on trail etiquette:
"In short, use some common sense out there. Be a good sport, don’t act like you’re more important than anyone else (you’re not), preserve the land, and have a good attitude. It’s pretty simple".
Most importantly though, have fun out there!