You have a beautiful voice
The android sat at her desk late one afternoon, sketching out blueprints for potential test chambers. She could've done it all in her mind, of course, being a computer, but it just wasn't as relaxing that way. There was something about putting a pen to paper that felt natural, even if it was embarrassingly human of her.
It certainly wasn't her only habit left over from her days as Caroline, though. Another, even more noticeable, habit was her singing. Whenever she was alone, and distracted with mindless paperwork or baking, she couldn't resist the urge to softly a sing a tune.
It was one of those days. Focused on her work, she hardly even notice the tune coming from her mouth. However, the sound of an intruder in her doorway was certainly enough to snap her out of it.
She went silent instantly, spinning around in her chair to get a good look at the doorway, and the idiot who decided to sneak up on her. The furious expression on her face was more than enough to warn him that he'd made a mistake.