Observers watched and walked, talked among themselves, about the heat, the popularity of escape rooms, the Cubs, how much Chicago was spending guarding this march alone. At the corner of Addison and Clark, the protest stopped and held court, and Millicent Hoffman, who has been an observer since 2014, stayed close to the front. At Wrigley, fans lined the upper decks and some watched silently and some shouted insults. Then after an hour or so, the protest tapered off and the media packed up and no one was arrested. But Hoffman stayed until the very last protester. She has a rule: She goes home when the protesters go home. Or she leaves when the police leave.