A game that gets everyone at an event talking to one another. In the end, you draw a paper with 2 topics on it. You win if you're the fastest to locate the two people who are passionate about the topics you drew.
Help people break the ice and talk to each other.
It is easier for people to approach and talk to strangers when they have a reason/excuse to do so.
Indiscriminate speed dating between everyone within the venue.
Upon checking in, everyone has to specify a unique topic they enjoy discussing. No two people can choose the same topic. If your first choice has been taken, you will have to come up with a second-best or go niche, deeper within your field of interest.
Meet everyone and discover their interests
Everyone has until the end of the event to talk to each other and find out everyone's favorite topic.
At the end, everyone picks a random piece of paper with two topics written on it. Whoever is the fastest to find both people whose topics are listed in the paper and bring them to the jury, wins.
All three share the prize. Sharing is meant to encourage people to go with others rather than continue searching for their own pair.
The prize is something cool and appropriate for the event.
What would motivate people to not just move on to the next person as soon as they discover someone's favorite topic? What would get everyone to actually be interested in what the other person has to say?