From the Home screen, touch and hold the Recent
Apps Key (in the Touch Keys bar) > Settings > Language & input. Tap the Settings icon
to the right
of LG Keyboard, tap Input language and keyboard layout, then checkmark the languages you want the keyboard to be able to
use.
OR
Open the Notifications panel (when an app that allows text
input is open), tap Choose input method (in
the ongoing notifications list) > Setup input methods (at the bottom of the dialog box) > the Settings icon (to the right
of LG Keyboard) > Input language and keyboard layout, then checkmark the languages you want to be able to use.