Wasteland Whisperer (Fallout 4)

Wasteland Whisperer is a perk in Fallout 4 and Fallout 76.

Fallout 4
To use this perk, you must aim a ranged weapon at a wasteland creature and press your interact button (X on PS4, A on Xbox). This perk is not guaranteed to work, even on enemies with a significantly lower level than yours. Once an attempt is made, another is possible after waiting a short amount of time. If successful, a mini animation of the vault boy will pop up and the target will become friendly according to your HUD; however, it will become hostile if you holster your gun. Similarly, if you do an action that requires holstering your gun (e.g. exiting a suit of power armor) the creature will become hostile again.

Once intimidated, the creature appears to lose its faction allegiance but will still react to crimes committed against them. For example, an intimidated enemy will not attack if their allies are wounded/killed. Note that damaging/killing one intimidated enemy will have no effects on other intimidated enemies, only that specific individual.

Dialogue
The Sole Survivor will sometimes make species specific comments when pacifying and inciting targets.

Behind the scenes
This perk was implemented into Fallout 4 by level designer Justin Schram.

Bugs

 * If you will pacify a super mutant suicider and then shoot him, so he will become hostile again. If the glitch triggers, you will see him not moving, holding an invisible nuke that emits red light. The nuke won't blow up during this glitch.
 * Wearing a power armor helmet with the Targeting HUD mod while using any rank of this ability will still display the vault boy animation when a successful pacification is made, however the enemy will remain hostile and unresponsive to being incited to attack, or given commands. Likewise, if that power armor helmet is equipped after the creature has been pacified, it will become hostile again.
 * An easy solution is to unequip the power armor helmet before attempting any pacification. (This is only true IF you pacify PRIOR to the target mark occurring. With multiple tests, if the recon tag affects the enemy before pacify, both can simultaneously affect the target).

Fallout 76
The perk works similarly to its appearance in Fallout 4; aim a ranged weapon at a wasteland creature and press the interact button to have a chance to pacify the creature. Each level of the perk increases the chance to pacify and the pacification effect lasts for 60 seconds. Once an attempt to pacify is made, another is possible after waiting 60 seconds. Pacified creatures cannot be given orders, instead performing their normal idle actions.