Anonymous on 9/2/2020 8:10:29 AM:
Always announce your presence when approaching from behind as Jerry said.
Other than that, am not aware of special etiquette for bike trails. Wouldn't you do the same as you do anywhere else? If you are the friendly type.....speak, make a comment about the weather, the trail, the deer you just saw a few minutes ago. Be friendly if that's your thing.
It is okay to ride along together as long as they want your company. It's not okay if you're being a pest. It's usually not difficult to find out if someone wants riding company or not.