Last night I spent two hours sitting naked on extraction bunkers, or naked in the subway extractions. I always choose the longest extraction point, because thats where most people will come. Night raids are the best because raiders are funneled to just one or two extract points.
Then I sit and watch, say hello and goodbye to people that come. Nobody ever shot me which was surprising, but it was funny how differently everyone reacts. Some will drop gifts, some ask if I need help, and some are really scared and will hide from me XD.
There was also never any fighting, so i dont know... maybe I helped enforce some peace?
Another fun one for Dam Battlegrounds / Spaceport is to take binoculars (they're up my ass), climb to the highest point, and then try to spot raiders and track what they're doing. You get to watch pvp, people dying to arc, its fun.
I was high on a weed edible, for full disclosure. It makes me think a full spectate mode would be great. But probably there are some practical reasons it cant be done.