I would:
- Try to disarm all terrorist organizations and inprison those that are active in the al-Qaeda, but in a peaceful way, with no violence, therefore mocking their so called claims that they are "fighting", when they aren't, it's just bullying lol.
- Try and form a partnership between all nations, so get peace...
- Rid the world of debt...
- Play on the eyetoy!
This is all hypothetical by the way.