As a constant pedestrian, my main concern is people turning right at a light as I'm starting out in the crosswalk. In that case you can usually check their eyes from the side even at night. If I don't have confirmation they see me, or if they aren't obviously stopping for me, I don't go.

If it's someone at a 4-way stop, you can usually tell when they come to a stop far from back the crosswalk. Otherwise I don't walk out in front of them. I also try to be aware if I'm in their blind spot.