There Is No Wrong Reaction
Among the strategies that Arteaga suggests, you should try and reclaim your space if you feel like it is being infringed upon. Whether that means moving to the other side of the street or taking some other sort of action, the choice is all yours.
One of the best methods to defend yourself is to ask for help if the man doesn’t stop harassing you or document the situation. Of course, do this only if you feel like it is appropriate to do so. Again, there is no universal reaction to these situations.