4.D.1. Poll Watcher Access to Voter Booths.
Poll watchers, who have, by law, extraordinary access within the Polling Place, have limited access to the voting booth area.
One restriction a poll watcher has to free movement within the Polling Place is to be near the voting booths while the booths are occupied by voters.

Rule of Thumb.
Stay out of the voting booth area if there are ANY voters voting.