This short tutorial is about the steps required to change the display language on Mac Lion. Mac Lion users can change the display language of the system using the options available as System Preferences.
Step 1: Launch System Preferences (Click Apple icon -> System Preferences)
Step 2: In the System Preferences window, navigate to Personal section and click the Language & Text option.
Step 3: In the Language & Text Preferences window, drag the language to first in the list to change the order. By this way you can change the display language on Mac Lion.
In case if you do not see your preferred language in the selection list then click the Edit List button.
This would display the following Language List box. Now mark the check box available before the language and click OK button to show your preferred languages.