She does do excessive facial expressions, I don't know if she has a drama/acting background, but it does feel like every movement and sound coming from her head goes directly into what she is trying to express, most people blank/flat face at some sad, happy or horrific scenes even though in the inside they are feeling those things. I used to have a coworker that was like that, if she was happy, sad, or angry, you would know it, meanwhile, there's people with flat faces that you don't know if they had the worst day if their life or if they won the jackpot.