how to use your mobile wifi

Use your phone as Modem
 

You can use the mobile internet of your phone to browse internet even on your desktop computer. This process is called tethering. You can do this by:

Connecting your phone via USB to your computer
Creating a WiFi hotspot

To start tethering, go to Settings -- Wireless and Networks -- Tethering and Portable hotspot.

Please note that when you do this, you will incur additional costs of mobile internet.