If you want people to come to your talks, provide lunch. And not just stale pizza. Maybe mix it up with sandwiches one week, burritos the next, and a pizza week thrown in there every now and then. Just to throw em off. 

If you provide lunch, people will come, they will tell their friends about free lunch, their friends will come, and then – just maybe – everyone will learn a thing or two about science. 

And that is what I learned about science today. Science is cool.