About this scene
Living room, daytime, home security camera angled from the high corner. She's in cleaning uniform, mid-twenties. She thinks the camera is a decoy because the indicator light is taped over. It isn't. She finishes vacuuming, sets the machine down, and uses the next twelve seconds to do exactly what she would only do if she was certain nobody could see. Then she goes back to wiping the coffee table.
What to watch for
Twelve seconds is short. It's also the entire reason the clip exists. She does not look up at the camera once. She does not check the windows. She is fully convinced she's alone, and her body language during the twelve seconds is unguarded in a way that's only available when there's no audience. The transition back to cleaning is fast and the rest of the room gets dusted at her normal pace. She has no idea the footage exists.