Planning an event for startups - what moves the needle amidst all the noise?

I'm part of the entrepreneurship ecosystem at a large academic institution. We are hosting a 3 day "Entrepreneurship Week" in which there will be lots of educational events, with a couple pitch competitions mixed in for startups. I have a (2+hr) slot available to add an event to the schedule. I am leaning toward a **networking mixer with startups and investors/ industry.** The intent would be to keep it casual with refreshments and maybe social games, but I've been thinking about adding a **keynote**, or something like an '**open mic**' where participants say who they are and what they're interested in. Anyway, I'm open to any other event types/ programming suggestions that add value, so: * ***What type of events do you find most beneficial?*** * ***Are there any activities during an event to increase you've enjoyed/ didn't?*** Thanks!