Quote Originally Posted by Mr. Silver View Post
If I recall my Road I safety training, it's good to be:
Predictable
Visible
Alert
Polite

When I thought about this, I can apply this to many areas of life. I found there were things I did in the car - out of habit - that violated these simple rules.
Mr. Silver, props for this observation. Too true.

I try to always say "On your left" in a polite tone or, equally often, "Coming up behind you," which is long enough to let the passee process the fact that (a) I'm behind them; (b) they need to move; and (c) which direction to move when passing people on a bike, but this hasn't rolled over into the rest of my life.

I do, however, have to squash the urge to signal right or left when walking through the maze of hallways at work. I suspect that hand-signaling would just get weird, uncomprehending looks. Personally, I think it'd work better if everybody DID signal -- avoid all those near-collisions that happen when you try to guess where somebody's going.