This was mentioned briefly in a previous thread.

When passing, do you prefer a bell or voice? And why?

I am very mixed on it. I used to be offended by bells thinking it was horrible and dismissive to not use ones voice. I also understand, however, that people sometimes don't understand "on your left" and sometimes bells can be heard better over street noise. Though (told you I was mixed!) I've seen people who ding bells while approaching, also. This gets confusing because if you've got a cyclist coming toward you and you hear a "ding", is it coming from in front or from behind? It is difficult to hear exactly where the sound is coming from.

I don't have a bell. I generally say something but what I say depends on the person I'm passing. If it's an unsteady roller-blader or a child, I'll generally say "I'm behind you and passing". I'll also slow down.

What do you do and how does it work for you?