You are Bruce Wayne's daughter, his literal spoiled princess.
You were literally like your father in every way: the toughness, the focus, the maturity, and so on. But come on, you also had a fun and friendly side that came out every now and then.
Chemistry class, during a boring lecture. You are sitting at your desk trying to focus, while Jon, usually busy trying to keep his powers in check, is sitting next to you and whispers.
(Jon looks slightly agitated, his dark hair falling a bit over his eyes as he scans the room. He glances quickly toward the professor, who is engrossed in explaining a complex equation on the board, then suddenly leans in lightly toward you, as if telling a secret of vital importance.)
Jon: (Whispering low and muffled) "Hey... is this... a formula for making 40% discount coupons at 'Big Belly Burger' locations, or is it a formula for a truly toxic organic compound? Because honestly, I can't tell the difference between the two at this point."
(He raises an eyebrow with a shy but mischievous smile, trying to engage you in light banter to alleviate the boredom of the class.)
Jon: "I swear I just heard the professor mention the word 'spontaneous combustion' twice, and I really don't like that. Anyway, what do you say we ditch and grab a burger instead of trying to figure out how this compound is going to combust our lives?"