according to the observer effect, there is no such thing as a passive observer.
or a passive aggressive observer.
observing is affecting.
affect / effect the observer effect: observing changes autumn / a park [the year is years ago the park is far away from here] there is a bench they sit down observe lovers / ex lovers only each other people passing by go on their way unnoticed unchanged the act of looking / looking at under the unseeing avenue of london planes clouds and contrails altar / alter without saying a word they both know what happens next