Originally Posted by dougmc

People look where they expect traffic. They generally don't look often or at all in places that should not have traffic.

This is one reason why going the wrong way on the sidewalk is dangerous -- even if it's legal, drivers (and cyclists, for that matter) don't expect traffic to come from that direction. If you're going to ride that way, you need to be extra vigilant, probably starting with the assumption that nobody is going to see you and so you'll have to yield to everybody.