>>330462015
Fair enough. This is how I do it

>duplicate avatar
>disable original avatar by unchecking object box in the top right
>select duplicate
>remove avatar descriptor from duplicate if it is there
>navigate to animator/animations
>click record and then save as whatever you want
>pause recording
>click avatar until you have orange outline for the model itself
>play around with shapekeys until you have the desired expression
>hit record again
>manually delete slider input and put it in again for it to register as a keynote in the animator
>do this with all shapekeys 
>copy all keynotes in the animator and paste it one frame after the first ones
>create new clip for next facial expression and so on

Maybe there's an easier way but this is the way I've been doing it for a while.