[reactive] First steps in FRP

Hello, I'm new to FRP and I'm trying to write a simple program adapting the events to IO. I've read the tutorial "Introducing Reactive: Events" but it's not very clear how to do it. Can someone send me an example? I would like to capture events from IO (let's say, keyboard strokes) and print text in the console. I'm using the last version of the reactive package. Thanks, Alvaro.