Haru couldn't for the life of her remember what this argument was about but she was hungry and just wanted to eat.
So she stabbed her food then stuck it in her mouth, but then she had a thought and decided to eat her food in a way to make Gokudera give up the argument. It was subtle just a tiny lick before eating went quiet, eating his piece sausage and his statement died on his lips. Haru smiled and ate her food in peace, she loved having this effect on him.
Later during study hall they got into another argument, some of the other girls glared at for arguing but she ignored them.
"I can do it, who are you to determine if I am able to do it or not."
"I say and see as I am in charge of some of it." Haru was fed up and he couldn't protect her from combat training forever and she was gonna do it whether he liked it or not. She thought about how she won earlier that afternoon and decided that since he was close enough she could use her fingers to get her way. Very subtle where none of the other girls could not see and she ran a finger on his hand, watching Haru saw him stop and his eyes darkening a bit.
"I can do it." he nodded his head and they went back to working on their project.