Anyone ever say "I'm passing on your left" and have the cyclist swerve to the left?
IME, if I'm going along at twice the speed of the cyclist I'm about to pass, it's best just to go on by without saying anything. I do give people at least three feet; I'm not going to buzz them.
Out in the middle of nowhere, if I approach another cyclist, I'll usually come alonside and say hello. We'll either have a short conversation or I'll keep going. But I'm a cyclist, not a tri-geek. I'm not always in race-training mode. (Well, not ever in race-training mode.)