When the window falls from above look up and you will see her. It's really scary because she just stands there watching you and kinda slowly backs away while twitching. I also noticed one part where she is staring through the hallway window at you too.
Yes. That's the part I saw was on the balcony. I tried seeing her through the window, but she never showed up for me. Also, have you ever been possessed by her? That happened to me a couple of times.
No. It's when she attempts to kill you, but you keep moving where you "evade" her grabbing you, and instead you'll end up possed by her where she is inside you until you pretty much reset everything.
@Chapstick when she come towards you she'll grab you and kill you (happened to me once), every other time she tried it I kept moving so she couldn't grab me. I was possed ibstead. You can hear her inside you. Pretty eerie.