I'll go and play footie
Scored a scorching hatrick in the sunshine, bad day over.
Back on subject. I think it only needs something small to get people to congregate and mix at the end of an event. This would be especially useful for people going to events on their own. Luckily enough, whilst I was taking my turn in goal I thought of some such thing.
Could there be at the end of the event a map in the assembly area showing the planners intended route choice for each course? (Planners must have 'suggested' routes when planning courses.) This way, before or after one changes, people would go to the map, mingle, and maybe discuss route choices and/or whatever they fancy. Be it politics religion philosophy or Nopesport.