how to add hadles in behaviours

Oh, a screenshot of the Face behavior with the views and handles sections expanded could be helpful too. They also show what tags the behavior found.

I never worked out what the "mouth group" tag does, but i notice a warning in the warnings panel about 'mouth group' tag not being used, but no warning about 'mouth' tags. If you click on the mouth layer in rig mode, look in the properties panel for tags. Does it have the mouth tag on it? if not, add it.

Otherwise please provide a screenshot of the rigging hierarchy. I wanted to check the Mouth is under a layer with the Head tag on. The 0 for Mouth is where i would start. Why did lipsync not find the mouth (it looks for visemes only if a mouth is found)