Basically a bunch of people find themselves in place and they speak to each other for a few minutes before moving onto the next person who may or may not be the same sex as them. That is the difference with most speed dating set ups. This is focused on making new friends as well as potentially finding dates. You can do both or neither or just smile pleasantly and pretend you know what is going on.
Its all organised so you just need to turn up. But just let me know in advance that you are coming so I know what the numbers are.
Here's to a very random day or all :)