When Elaine rubs George's head into her chest, because he complains of not getting a Christmas Card off her with the infamous nipple photo.
When Elaine screams at George "YOU'RE BALD", when he is wearing the toupee and complaining about being set up with a bald woman. She then rips the toupee off his head rushes over to the window and says "I hate this thing...and here's what I'm doing with it". She then throws it out the window and walks off brushing her hands with a big grin on her face.
When Elaine gets upset, and she pulls that face...
In The Jimmy episode when Elaine meets Jimmy at the benefit and says "Elaine got a new dress".
They are some of my favourites...