[Oikawa should be given a medal for leaving his phone in his pocket and not whipping it out to take a photo of Yamaguchi's face. It's a (rather adorable) natural marvel.]

If you do this just from me reminding you you're cute, I can't imagine what you're going to do if I try and kiss you. [He carefully says "if" rather than "when" even though unless something goes horribly wrong it's definitely a "when" kind of situation.]