When Abel flees to her bedroom the first night. Her sister is questioning and comforting Abel whilst her headphones are on/off again throughout scene (22 minutes).
When Alia talking with Tasya in the hospital, they didn't tell their names each other. But in the next scene, where Alia talks about Tasya to her mom, suddenly Alia knows Tasya's name.
At about 1hr 21 mins, the curtains are blowing in the wind but the flower petals on the floor don't move.
At about 46 mins, Alia turns off the bedside lamp beside her, but the one by Abel goes off too.