I just tell them I'm passing and say, "hello" before I continue on my way. No need to over think, just ride :]
This.
On the commute to work today, I scared the crap out of this girl on a mountain bike. I said my usual "on your left", but apparently her
EARBUDS WERE JAMMED INTO HER EARS TOO FAR, and she did not hear me. When I passed, she almost jumped out of her skin.
Yeah, can ya tell it's a pet peeve of mine to share the road with cyclists, in traffic, oblivious to what is going on around them?
/rant