Got this idea after watchin' "Recycle" which is directed by Pang Bros. Quite a nice film. I couldn't wait to impersonate Angelica Lee's horriyin' & shockin' expression from that movie though it resembles her performance in "The Eye" & "Koma".
I summarized that in Horror-movie making business requires actress that has big eyes (big pupils & big eyelids plus long eyelashes). The horror film will lost its mojo once they have small-eyed actress in the cast. The eyes made the difference. It's part of the body language.