With a single step
Raven would look at the dining table as she took note of their arrangements. As she took a step towards them she would notice the shadow cast by the man and immediately summon one of her signature blue jays (a blue flame she creates and controls) as she went into a battle stance. She remained alert but as the seconds passed and turned into minutes she would realize the man had no intention of harming her. At the very least, for whatever reason, he hadn't even acknowledged her existence. The single blue jay would flicker as it slowly moved to him to show more of his features.
The house was covered in dust, the door knobs rusted, with empty pictures. It was obvious without even thinking that this place was supposed to be unoccupied. The fact a strange man was just staring out the window was anything but normal. Regardless, Raven would speak.
"Who are you?" she asked bluntly, her words tinged with a little edge