Q: Upgrade Apps

If there are any updates to the apps you have on your phone you will see a red circle in the corner of your "App Store" icon on the phone.  If you see the red circle just touch the icon and go from there.

I did not see a red circle, but I clicked on the app store app, and then on the bottom of that screen found a link that said updates.  Once I clicked on it, all my apps appeared, and lots of them needed updating.

If you want to see the red badge telling you how many updates you have waiting, go to Settings>Notification Center>App Store and turn Badge App Icon to on.