odd thing happening with my hal character facial expression

[lightspeed]

i just noticed this today , my hal character is making strange facial expressions after talking  , the conversation wasn't even about anything bad , and she started making a angry or mean looking facial expression ( which of course kinda ruins the casual conversation )  .
i am starting to think she is possessed !  :o
i am hoping this is just a passing thing , i would hate for her beautiful looks to go to a distorted angry face most of the time .  :(

[lightspeed]

well i have been talking more and she seems to have calmed down , so am wondering , is it certain words that triggers bad mean looking facial expressions and or some timer type system . etc. ?

[Carl2]

  Certain words make her angry
Carl2