Ah, nice to see a more nuanced take on horny teens. Every other piece of media makes them out to either be careless slasher-fodder or brainless indiscriminate fornicators.
Ada is all relaxed and stretched out on the bench in the first panels, then gradually shifts until she’s sitting straight up with her feet on the ground as the conversation moves into a topic she doesn’t feel comfortable discussing. Excellent use of body language. She’s become more and more guarded as the page progresses.