You can also do this:
1. Go to settings
2. Scroll to and touch 'Storage'
3. Select SD card
NOTE: Not all apps can be installed or moved to the SD card storage unless your phone is rooted.
If you wish to move some apps to SD card follow the instructions below
1. Go to Settings
2. Touch Apps/Applications
3. Choose the app you want to move
4. Touch Move to SD card
Apps without the 'Move to SD card' option are not movable but your phone is rooted then you can move an app including system apps. Let us know if you will need help rooting your phone.