Stealth
The Stealth skill allows you to hide from normal sight.

You will only be visible to people who have the Detect Hidden skill equal to the amount of Stealth you had when you stealthed.

Skill Use
Use the Character > Info screen and click the Stealth button to stealth from normal view, you may not be able to do everything you can unstealthed while stealed.

To unstealth use the Character > Info screen and click the Unstealth button.