Since I'm a nerdy-nerd, I'm awaiting iOS7. If you have an iPhone, iPad, or iPod touch update is today! Should be out around 10am pst, or 1pm est. If you're going to update, you can do it through wifi or by syncing with your computer. You might need to update iTunes on your computer first though, so there will be an extra step.
Make sure you back up your device before updating! iCloud is your friend, I promise. Or, again, plug into your computer and backup via iTunes. Updating iOS shouldn't effect your stuff (pictures, contacts, etc) but its always better to be safe than sorry.
I'm home all day, as usual, so if you have questions or concerns, don't hesitate to ask! I'm happy to be of use : )