You glance up to see $activeslave walk past your door. <Case based on devotion>. You haven’t done anything fun with $activeslave in some time and you see a way to kill two birds with one stone.

(Low devotion- She walks quickly past the door eyes straight ahead, not wanting to see you and especially not wanting you to see her.)
(High devotion- She walks slowly past your door, even giving you a seductively playful wave. She almost certainly wants you to call her in.)