The candy man would also come to the village on his bicycle periodically, blowing his bugle to announce his arrival, sell candy, and then set up his story-telling display and tell stories to the children. In many cultures like that, much of public life was done in the streets, in the town square. And so, that was also the place the prophet would come and proclaim. If a preacher was drawing a crowd, it could become a traffic hazzard. But many cities have areas where people are allowed to proclaim whatever it is they are presenting.
Street musicians play music, people walk around with picket signs, and some stand on soap boxes.
But if you contemplate whether or not God is calling you to this kind of militancy, do remember that Jesus was not of this sort. We are to be like our Master. If you are persecuted, be sure it is because of the Gospel, not because you were being a 'generic' pest. When I went to college, there were certain plazas on campus where people would demonstrate. They would sing and preach.