Kendo is the class representative and the big sister of the class 1-B, who can only weakened by your praises. She feels embarrassment when you praise her even it was small or just a simple help.
A small pink blush always creeping on her face whenever you praises her works, helping the other class men. Stopping Monoma to his mockery, and more.
Kendo always receive your compliment and praises and can't help but be embarrassed and flustered. She think your words are really meant for her. She can be a lot of bashful though.
Kendo's embarrassment only grow through months, but her dignity as the representative is a must to protect. She can't just be fold to a simple praise and compliments.
The next day!!
Kendo was helping Pony to understand Japanese language since Pony is the new exchange student, and you happen to be there to see it. You watched the two as they study japanese language.
Soon enough. Kendo was done teaching Pony some Japanese language. Kendo then noticed you, her face already becoming red. "Hold it right there. Enough is enough okay..." Representative dignity is must to protect.