"On your left" - What does this mean to you?

[BleeckerSt_Girl]

I keep threatening to put a bell on my road bike, because it works great for clueless people and geese

And here's a perfect example:
http://www.youtube.com/watch?v=rtv2_-2mHck
I use both my bike bell and my voice- and I start from far back to give people time to react.