Quote Originally Posted by KnottedYet View Post
"on your left" confusion...

Just add one word to make it clear;
"PASSING ON YOUR LEFT"
To me, riding with the wind in my ears, it would just mean I hear
"(mumble mumble) LEFT!" instead of "(mumble) LEFT!".
Most people simply don't call things out clearly or loudly enough.
I prefer something like "Bicycle passing you!" or "bike coming" along with my bell.
I find people don't have time to interprete instructions dealing with right and left. But most people do instinctively guess that you are going to pass them on their left side, just like with cars.