We have to cover the whole town.  Show your face twice going the same way down the street and you may be dogmeat.  You don't need a map to get started - you're going to make your own.  You have to identify everywhere you've been.  When you get to the end of the road you have to backtrack to your last decision point and make a different decision.  You may have to backtrack to this point several times if you have several possible decisions.  That's fine but just make sure you don't repeat any of your previous decisions.