Part the Veil (Rank 5) Edit
With this Gift, a werewolf may immunize any human from the Delirium for a scene. In this way, the human can interact with Garou without deleterious effects. However, the human will forget much of what he knows if the Delirium is induced in him at a later date. An ancestor-spirit teaches this Gift.
The player spends a Gnosis point and rolls Charisma + Empathy. One success is all that's required.
Source: 3rd ed WWtA Corebook