Unlocks potential in your Aura-reading ability:
Each time a Generatoris completed, Dark Sense activates:

The Aura of the Killer is revealed to you for 5/7/10 seconds, as soon as they come within 24 metres of you, after which Dark Sense deactivates.

After repairing Generators for a total of 33 percent, Wiretap activates:

After repairing a Generator for 3 seconds, press the Active Ability button to install a Wiretap, which stays active for 60/70/80 seconds.
The Auras of trapped Generators are revealed to all Survivors in yellow.
When the Killer comes within 14 metres of a trapped Generator, their Aura is revealed to all Survivors.
Damaging the Generator destroys the Wiretap.

Unlocks potential in your Aura-reading ability:
While you are hooked:

The Auras of all Survivors are revealed to one another.
Whenever the Killer is within 8/12/16 metres of your Hook, their Aura is revealed to all Survivors.
While any other Survivor is hooked:

The Auras of all other Survivors are revealed to you.
Whenever the Killer is within 8/12/16 metres of the hooked Survivor, their Aura is revealed to you.

Increases the Efficiency of your Items by 15/20/25 percent.
Streetwise extends its effect to all other Survivors within 8 metres of your location and lingers for 15 seconds.