Animation
Texture Reference Object
Most of the time you will be creating Yeti graphs on input geometry that will be deforming - due to the way Yeti resolves the surfaces motion it's required to have a Texture Reference object for each mesh that may be deforming. These can be created by selecting the Mesh and using the Create Texture Reference in Maya's Texture menu. If not created you'll likely end up with sliding/popping fur.
In most circumstances the surface that Yeti is attached to will need to be animated in some way - as characters move and deform Yeti relies on a rest position to handle temporal and spatial changes to the input geometry.
This is done using Maya's 3D Texture Reference objects in the Rendering context under the Texture main menu - this simple process is straight forward and the reference should be included in any rigs or other setups you may use, just select the mesh in question and select Texturing->Create Texture Reference Object.
If at any point the geometry topology changes just make sure to re-create this relationship.