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.
A really useful feature in case you want to receive a warning notification before you use all of the mobile data available according to your mobile provider contract. It's a great way to avoid additional charges.
If there is no WiFi hotspot available and you still want to surf the web with your mobile device, you need to have your mobile provider's APN settings entered and this is where you find them.
If you are a Instgram user, then you most probably notices the smilies or so called emoticons people are typing in comments. Let me show you how to use emoticons on your iPhone or iPad.
