There's more useful facial animation MOD by Axepriest.
Check it out.
FAFF - Face Aches For Fallout


It allows to change character's expression.

1. Open console.
2. Type "TFC"
3. Select PC or NPC.
4. Type PlayIdle fe01 to 22
5. That's all.

If you want to make expression more longer, type fe** and reopen console and type same command again.
It makes the expression permanently.
To reset the expression, type "playidle fereset".

fe01 Aah
fe02 BigAah
fe03 BMP
fe04 Oh
fe05 OohQ
fe06 Eh
fe07 FV
fe08 W
fe09 Sad
fe10 Anger
fe11 Fear
fe12 Happy
fe13 BlinkRight
fe14 BlinkLeft
fe15 BlinkBoth
fe16 EyeSquintLeft*
fe17 BrowUpLeft
fe18 BrowUpRight
fe19 BrowDownLeft
fe20 BrowDownRight
fe21 BothBrowUp
fe22 BothBrowDown
fereset

*It doesn't affect the eyes, it seems just open the mouth like Aah.

Install
=========

Extract the archive with an actual version of 7zip.
Copy .esp and meshes folder to your Data folder.

Uninstall
=========

Delete it.

Changelog
=========
0.8
- Added fixed mtidle.kf.

0.7
- Added Brow expressions.

0.5
- Added BlinkBoth and EyeSquintLeft, Fixed expressions order.

0.4
- Fixed reset.kf. Thanks >>712!

0.3
- Added W, and minor fix.

0.2
- Added Fear, BlinkLeft, BlinkRight.

Known Issues
=========
- If you swing a weapon after play expression, your expression will be disabled as well as beth .kf file.

Thanks to
=========

Bethesda for creating Fallout3 & Oblivion.
Fallout3nexus.com authors and players.
tazpn for kfupdater.
Niftools.
Blender.
and Drayk Cannon, 712.