make a good selection in photoshop
on the mouth,
use Layer via cut
save the file as psd.
Import it as Layers in after effects and start Animating .
Thank you for your response! Sorry it took me so long to reply, I was away without internet. Thanks again!
Here's another way to do it:
Shoot extreme closeups of people's mouths as they talk. Put a mask around the mouth. Scale and position the mouth layer over the still.
CLUTCH CARGO LIVES!
You have to be a certain age to get that reference.
Hahaha, that's actually a really interesting way of doing it Thanks a lot!
Oh wow, that's extremely helpful! Thank you very much!