Basically you start on the left side, unless it is occupied. In that case, go to the right, unless that is also occupied. Then proceed by occupying the next available gap, as in chess or checkers. Just trust your instincts, ascertain the direction, and proceed. Adherence to road rules leads to much misery and occasional fatality.
Most drivers don t drive, but just aim their vehicles in the intended direction.
Don t stop at pedestrian crossings just because some fool wants to cross the road. You may do so only if you enjoy being bumped in the back. Pedestrians are instructed to cross only when traffic is moving slowly, or has come to a dead stop because some minister is in town. Still, somebody may try to be brave and cross, but let us not talk ill of the dead. Blowing your horn is not a sign of protest as is the practice in some countries.