You can see the Scratch Marks of other Survivors.
Whenever another Survivor loses a Health State within 32 metres of you, the Killers Aura is revealed to you for 3/4/5 seconds.

While repairing a Generator, its Aura is revealed in yellow to all other Survivors located within 32 metres.
If the Killer downs a Survivor while you are repairing a Generator, you see the Auras of all other Survivors for 8/9/10 seconds.

When starting to run, break into a sprint at 150 percent of your normal Running Movement speed for 3 seconds.
Sprint Burst causes the Exhausted Status Effect for 60/50/40 seconds.
Sprint Burst cannot be used when Exhausted.

Each time a Survivor other than yourself is killed or sacrificed, Sole Survivor gains 1 Token, up to a maximum of 3 Tokens:

Each Token grants a stack-able radius of 20/22/24 metres within which the Killer is unable to read your Aura, up to a maximum of 60/66/72 metres.
Once you are the last Survivor standing, you benefit from the following effects:

Increases your Repair speed of Generators by +75 percent.
Increases your Opening speed of the Exit Gates and the Hatch by +50 percent.
Increases the odds of becoming the Killers initial Obsession by +100 percent.

The Killer can only be obsessed with Survivor at a time.

While repairing Generators, complete 5/4/3 Good or Great Skill Checks to activate Rookie Spirit for the remainder of the Trial:

Once active, the Auras of any regressing Generators are revealed to you.

When within 6 metres of a carried Survivor, the following benefits apply:

Grants a 5/6/7 percent Haste Status Effect.
Increases the Wiggle speed of the carried Survivor by +20 percent.
Survivors can only be affected by one instance of Breakout at a time.