Tiny ideas (cameras)
Some security cameras pan back and forth to surveil an area. Maybe small camera-units do that as their equivalent of staring into space. When they're content and not thinking about anything in particular, they'll stand still and start panning.
How might stand-up comedy exist in the robots' society? TVs and speakers can talk out loud but cams don't. They could talk using sign language, but might they just transmit to their audience? In which case a camera comedy club could be a surreal sight for a human because it would be entirely silent.