Who accidentally pushes a door instead of pulling/vice versa: Shin does, he’s probably sleepy or too busy thinking about something to pay attention. He’d get confused and try to open in again without success and Iida would have to step in to help him out. Poor bby
Who doodles little hearts all over the desk with their initials inside them: Shin probably, Iida is a good student who wouldn’t mess up school property. Shin likes to leave them on random desks for Iida to find, even if he gets scolded later on.
Who starts the tickle fights: Iida does!!!!! He loves to hear Shin’s laugh!!! He likes to do it on days where Shin seems more down. Seeing him smile is one of Iida’s favorite things.
Who starts the pillow fights: Shin so would. Iida would be trying to drag him out of bed and stuff, and Shin would just throw a pillow at him. An all out war would start then by the end the room would be a mess and they’d be on the floor laughing.
Who falls asleep last, watching the other with a small affectionate smile: Shin for sure, those are his favorite moments. When Iida is all relaxed and asleep after a long day. He’s able to relax as well and fall asleep along side him not too long after.
Who mistakes salt for sugar: Shin does, he can’t help it they’re right next too each other and look so similar. After that Iida makes sure there is appropriate labeling on each container.
Who lets the microwave play the loud beeping sound at 1 am in the morning: Shin, he’d be up studying or just staying up and want a snack, he was going to get it before it beeped, but he just forgot about it.
Who comes up with cheesy pick up lines: Iida would find the cheesiest pick up lines to tell Shin. They’d be sitting there enjoying lunch and Iida would turn to Shin and stutter out “If you were a vegetable you’d be a cutecumber!!”
Who rearranges the bookshelf in alphabetical order: Umm Iida???? Is that even a real question??? He is an organized boyo
Who licks the spoon when they’re baking brownies: Shin wouldddd, he’d be all like it’s gotta be perfect for you bby, but we all know he just wanted some brownie batter.
Who buys candles for dinners even though there’s no special occasion: Iida!!! He loves to make Shin feel special with a fancy home cooked meal.
Who draws little tattoos on the other with a pen: Shin, he’d lazily draw little doodles on Iida’s arms, sometimes they’d come out really good other times it looks like a mess of scribbles. Iida would let him too because Shin looks cute concentrated on making the doodle come out good, even if the ink is hard to wash off at times.
Who comes home with a new souvenir magnet every time they go on vacation: Shin does, he’ll see things that remind him of Iida and be like I gotta get this. Not only that but he loves to spoil Iida when he can, even if Iida insists he doesn’t need anything to know that Shin loves him.
Who convinces the other to fill out those couple surveys in the back of magazines: Iida does surprisingly, he likes to do it because it’s something simple that they can do together.