LG optimus G User Manual page 26

Your Home screen
Android keyboard - Letters Entry
Shift Key - Tap once to capitalize the
next letter you type. Double-tap for all
caps.
Number and Symbols Key - Tap to
change input to number and symbol entry.
Voice to Text/Settings Key - Tap to
enter text by voice. Touch and hold to set
various keyboard settings.
Space Key - Tap to enter a space.
Enter Key - Tap to move the cursor to
the next line.
Delete Key - Tap to delete characters to the
left of the cursor.
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Android keyboard -
Numbers and Symbols Entry
Alt Key - Tap to enter additional
symbols.
Letters Key - Tap to change input to
letters entry.
Settings Key - Touch and hold to set
various Android keyboard settings.
Space Key - Tap to enter a space.
Enter Key - Tap to move the cursor to
the next line.
Delete Key - Tap to delete characters to
the left of the cursor.