A robot should have much faster reflexes than you do. Robots should be able to compensate for people actively running or diving in front of them. The situation you describe should be very easy to compensate for.
Don't bother relying on body language or eye contact, just automatically sense the person shaped object, if it is close to the roadway, slow to a speed where you can avoid easily if they step out. Assume that they will. Heck, add in a buffer so you don't bother the passengers of the car by having to slam on the brakes.
Don't bother relying on body language or eye contact, just automatically sense the person shaped object, if it is close to the roadway, slow to a speed where you can avoid easily if they step out. Assume that they will. Heck, add in a buffer so you don't bother the passengers of the car by having to slam on the brakes.