The most important thing to remember... no matter what the rules are, people will ignore them or just don't know them. The most you can do is always be aware, signal as best you can, and warn people when you're passing them, especially if they have kids or dogs with them or generally spaced out. I take a few different bike/MUP paths in my area and try to always let people know when I'm about to pass. This is for their safety and mine so they know I'm coming by and not to wander over to the other side. I give earlier warning if they seem to be wondering around, dogs or kids are involved, another cyclist, or if a group of people is making it difficult or impossible to pass safely otherwise.