Have a go at basic computer programming! Try Hour of Code.
'Hour of Code' is an introduction to computer programming using familiar the familiar games Angry Birds and Zombies Vs Plants. Throughout the hour you are guided through the course by computer royalty Mark Zukerberg (Facebook), Bill Gates (Microsoft), BBall superstar Chris Bosh and NASA Engineer, Bobak, just to name a few!
What else can I do?
There are a lot of video tutorials for Scratch on youtube and on the Scratch Website.