Other than Harry and Ron Hermione didn't really bother herself with the other students at Hogwarts. As a result she'd gotten to know the grounds very well. Plus nightly patrols often left time for looking out over the grounds wondering about all the little things she gleaned from quietly watching.
"You know the As..." she stopped herself before she could go into a full lecture about how the tower was off limits. Not that such a rule stopped most students from sneaking up there regardless and risking the detentions that were given out as a result. Suddenly, it dawn on her why Ginny had even suggested the location. It was common knowledge that many didn't mind the detentions as long as they got a good snog in before getting caught. "Alright," she gave a shy nod and wondered how quickly they'd find themselves entangled like they had been on her bed once they made their way to the tower.