To go in a stealthy or furtive manner; slink; skulk; to act in a furtive or underhand way.
Usually a Contesting Skill Roll vs. the Target's Attention as a Hidden Roll.
This skill can be used in pick pocketing or stealing.
To start a Sneak Skill Roll vs a target's attention, you must be out of all targets' line of sight you are trying to sneak against.