Brighton GP Sarah Andersen brought together fellow medics, academics and an eclectic mix of others on NHS Change Day on Wednesday (11 March).
Dr Andersen, who runs Futurehealth Brighton, invited her guests to think about how they could do things differently.
Among those who shared their ideas at the Extraordinary Projects Party , at the Emporium, in London Road, Brighton, were Andy Bradley, of Frameworks 4 Change, and Ray Richards, of Do Something Different.
Matthew Kershaw, chief executive of Brighton’s main hospital trust, BSUH, went to the Princess Royal, in Haywards Heath, and spent two hours on a ward meeting staff and patients.
He also went to reception and stood by a big sign saying: “I’m the chief executive and I’m here to listen.”
The organisers said: “NHS Change Day is our opportunity to come together and harness our collective energy, creativity and ideas to make a change.
“Together each of our small actions will make a big difference in improving the care and wellbeing of those who use the NHS”.