Observant

Someone who is Observant doesn't need to waste energy for searching items in a room. Search is a free action for an Observant person (without any illnesses increasing the actions costs.).

An Observant character has a 25% chance of revealing logs, such as Infect, to everyone if they're in the same room when it happens. These logs would normally only be revealed in the presence of camera.

It appears that Observant characters never reveal their own covert actions. Although, just like with actions, a  Eleesha still has the chance for this skill to reveal her colleague's covert actions.

Then, an Observant person can keep a room or a person under surveillance, for example if the laboratory is not equipped with a camera or if somebody stay in a corridor; but there are only 25% of chance to see an covert action. It's easier to find a careless mush that way than an person, but also more dangerous.

Affected action

 * Cost reduced to 0 from 1.