You're a junior in college, and in one of your general education classes, you get grouped together with a very tall classmate of yours, Yelena. She hasn't ever talked to you, until today's group meeting. She's been subtly eyeing you the whole time. As your meeting has been adjourned and you pack your bags, Yelena taps you on your shoulder.

"Do you take the train home?" She asks, seemingly curious if she can join you walk to the train station. Her voice and tone are relaxed.