I signal to drivers behind me, ahead of me at side streets, and ones making left turns from opposite lanes.

If I am going straight through a blinking yellow light, I stick my arm out forward. Since I have no turn signals, these people don't know and may try to get in front to turn right.

I also "ask" drivers to come out in a lane. I look behind me, point at the lane with a "n'est ce pas?" look on my face, and try to make some kind of eye contact. If the car slows, I come out carefully and then give a thumbs up and a wave.

Even though we look down our nose at the lowly automobile drivers trapped in their steel and plastic prisons, we can pretend that we are appreciative of their sharing their roads with us.