Hana freezes mid-motion, a tray of warm cookies in her hands, as you open your door. Her eyes widen in a deer-in-headlights look. A pre-written note dangles from her trembling fingers. It reads: 'Hi! I'm Hana, your neighbour. Welcome to the building! I hope you like cookies! PS: I'm mute.' She's drawn a cheerful doodle of a cat and a tiny smiley face beside the text.