You hide a small object on your person (such as a weapon of light Bulk).
When you try to sneak a concealed object past someone who might notice it, the GM rolls your Stealth check and compares it to this passive observer’s Perception DC. Once the GM rolls your check for a concealed object, that same result is used no matter how many passive observers you try to sneak it past. If a creature is specifically searching you for an item, it can attempt a Perception check against your Stealth DC (finding the object on success).
You can also conceal an object somewhere other than your person, such as among undergrowth or in a secret compartment within a piece of furniture. In this case, characters Seeking in an area compare their Perception check results to your Stealth DC to determine whether they find the object.
Degrees of Performance
Success The object remains undetected.
Failure The searcher finds the object