The emotions of Jennie.
Has there ever been a more "real" housemate than Jennie? She wore her heart on her sleeve, and her face was so expressive it was impossible for her to hide her feelings. Here's a few of Jennie's "I look how I feel" expressions.
Click on the thumbnail to see the larger image.
And finally, in the space of 5 seconds, Jennie goes through a rollercoaster of emotions as she finds out she's leaving the house.