Oh, yeah. We got some jaw movement here.
Currently used dials on the left, and M4 in all his open mouthed glory:
...Of course, Michael’s mouth isn’t as big as Tyler’s. That’s just ... scary, somehow.
It would probably work best to apply some sort of smile/grin morph that would get the expression into the entire face—maybe using the Morphs++ “Happy” expression would help as well. That’s what I did with the (hopefully) second one, the one that shows that the eyes are now in the Currently Used section.

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