Other drivers are not looking for wrong-way traffic. Follow the rules of the road. Show pedestrian walking, step sideways to avoid car. Show car emerging from sidestreet nearly hit wrong way rider. Show cyclist riding properly in traffic.
Sidewalks are often very dangerous places to ride a bike.
Motorists do not expect traffic on the sidewalk so they don't look for you there. If they don't see you when they cross your path, watch out . Sidewalks may have poor sight lines at intersections. Even driveway crossings can be dangerous, especially in commercial areas. It is safer to ride on the street as long as you know what you are doing and you follow the rules of the road .