You'll notice on the conference program, a section for Lightning Talks. If you've got something that you'd like to share, the floor is open for you to chat for 10-15 minutes on any topic you think people will find interesting. The mic and data projector will be available should you want them, too.
We'll also be keeping the mic on during tea breaks and lunch, so if you have something you'd like to point out, advertise a job, tell your favourite joke, or suggest the best pub in the area, feel free :)
It's all very informal - a sign-up sheet for the lightning talks will be available on the day. Have a think about things you might want to talk about, or pester a friend to chat about their latest breakthrough :)