From Edge of Darkness Wiki
One particular animal species never seems to mind your character’s presence and reacts with remarkable favor when he tries to interact with them. Cats are always friendly, or wolves accept him as one of the pack. Each dot in this Merit adds a +1 modifier to all Social rolls made to influence or understand the chosen species of animal. Characters may purchase this Merit multiple times to affect multiple species.
Special: Skinchangers who take this Merit for their totem animal treat the one-dot version as the two-dot version and the two-dot version as three dots. They cannot purchase the three-dot version of this Merit.