Main Info:

Yet another mod that changes character's facial expressions

this time there's 2 main versions:

• for Tav 
  

it changes 3 smiling animations to neutral facial expressions.
This version changed the first 3 [happy] expressions to [neutral], check the link below if you want to see how facial expressions i've changes looked like

• for durge
  

it changes durge's "crazy smiles" to something more stoic/neutral in case you wanted your durge to look visually less crazy.
Durge had quite a few different facial expressions that looked like "evil smiles", so here's what i changed:

For now both versions change the facial expressions for non-beefy male/female elves/half-elves/tieflings/humans/drow. let me know if you'll need a version for another race or if it causes any issues.
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If you want any other facial expressions to be changed or if you want to see how each facial expression looks like to pick the exact one you need for your mods, check out this link -> BG3 Facial Expressions List (M head)
and here's a version with a fem head -> BG3 Facial Expression List (Fem head)
i've documented all (except for dead and sleeping) facial expressions that one of the faces uses. Animations should be pretty similar for all heads, so this could be useful.
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Installation/Uninstallation:

Install it like any other mod with mod manager of your choice.

This mod can be safely installed and uninstalled at any point. 
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Check out my other mods:

Happy facial expressions for Ascended Astarion kisses
More stoic facial expressions (replacer)
Run On All Fours (animation replacer)
Replace Volo's eye with hag's eye
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Mods used in screenshots:

Slutty Menswear 
Precious Pet Collars
Homebrew Face Tattoos
Replace Volo's eye with hag's eye
Rolan's head with cambion ridges (replacer)