If you are using a computer in public you may want to avoid attracting unwanted attention by changing the way Tails looks into something that resembles Microsoft Windows XP.
Activate the Windows camouflage
The Windows camouflage can be activated from Tails Greeter:
When Tails Greeter appears, in the Welcome to Tails window, click on the button. Then click on the button.
In the Windows camouflage section, select the Activate Microsoft Windows XP Camouflage option.
This is how your Tails desktop will look like: