I have no clue how thoroughly implemented this is, especially for pedestrians other than police, but Waymo does have support for hand signals and body language:

I have no clue how thoroughly implemented this is, especially for pedestrians other than police, but Waymo does have support for hand signals and body language: https://www.cnet.com/roadshow/news/waymo-self-driving-cars-police-officer-gestures/ https://www.cnet.com/roadshow/news/waymo-self-driving-cars-p... https://medium.com/waymo/safely-sharing-the-road-with-cyclists-9fe6ad3b79f5 https://medium.com/waymo/safely-sharing-the-road-with-cyclis...