Unmarked spoilers are ahead, per Spoilers Off rule.
Chapter 69, 70, 71, all showcasing how good a teacher Pin is, the streak of advice compiled with his usual sharp and direct approach is what makes it best since he's still completely in character while at it.
Most of the love confessions class as this since the readers/viewers have been desperate for the characters to spit it out for such a long time. What they become afterwards strongly dependson the result.
Kurumi slapping Kent round the face near the end of Season Two when he suggests a sleazy tactic for her winning over Kazehaya, something she's beyond at this point.