You just bought Nexus 4 and you don't know anything about Android operating system, so I will guide you through literally first steps on this great phone.
If you want to receive your Gmail emails, synchronize and backup your contacts, calendars, media or to simply download an app from the Play Store, you need to add your Gmail account on the LG G2.
You can organize your apps in so called folders on your Nexus 4. For instance you can put all your games into a games folder and this is how you do it.
This is how you add your favorite websites shortcut to your iPad or iPhone running iOS 7. It's a really useful feature if you are accessing some webpages frequently.
Windows Phone 8 enables you to choose the apps you want them to display its status on the lock screen of your phone. For instance a notification that you just got a new Gmail email.
Your iPhone or iPad screen all of a sudden won't automatically change orientation from portrait to landscape mode when looking at your photos or watching a video when you turned it over? No biggie.
Samsung Galaxy S3's screen is so beautiful that not watching movies on it is almost ridiculous. And if you own some other type of a smartphone than this tutorial is meant for you as well.