Your gateway to endless inspiration
I did this recently for myself so I might as well share. This is TS2 facial expression swatch and also some expression combos (in case you don't know - Decorgal's pose overlay hack allows you to apply and blend various expressions / animation loops)
And also, a tip - you can easily edit the pose hack STR to get better angry expression -> I replaced "Eyes Closed (S)" with annoyed face animation, which is a little twitchy (not suitable for movie recording - head movement) but still better than original adult angry face. BTW I actually managed to edit c-annoyed animation so Sims don't squint the eyes as much , you can download the annoyed animation replacement HERE (SFS)
I could use more evil or seductive expressions, TS2 game is seriously lacking those ;/