Imagine yourself hosting a party at your home. You put on your best clothes, curate the perfect playlist and make sure your space is looking its best. Perhaps you add some decoration, some fairy lights, bunting and balloons. There are platters of tasty food to eat and the drinks will flow all night. You hope there will be some dancing. And as the guests start to arrive, excited for the celebrations, you feel that final ingredient fill the air – it’s the unmistakably party spirit  –...