How to attach Geometry Cache to metahuman's face?

Hello,

I created a meta-human facial animation and geometry cache animation flowing over this face.

The problem is, I want to get the tears to move with metahuman’s face when I turn this meta-human’s head, but I just can’t find a way.

I would appreciate it if you could let me know if there is a good way.

Wow, what a cool idea. Have you tried socketing the cache into a facial bone?