Here's a great case study on how the Belgian city of Ghent used behavioural science to reduce public urination. They painted yellow footprints around the city with arrows showing the number of steps to the nearest public toilet or urinal. Perhaps Dublin City Council could do something similar in Portobello plaza (provided they install public toilets first).
Slow TV is a TV format popular in Norway that shows scenes or movement at the rate at which you experience them or that they happen naturally, as opposed to the speed of normal TV. Examples of Slow TV are long slow train journeys, watching sheep grazing, or a log fire burn in real time.