Sasuke isn’t naturally ambidextrous, he is left handed but taught himself to use both.
He prefers the company of animals especially his summons to people.
He loves reading!!! He stays up late reading about ninja arts and scientific theories.
He hated history as a kid.
Loves math, specifically geometry.
He likes science fiction but has no spare time for it.
He’s demisexual and demiromantic.
Can’t stand people who snore.
He’s never been a morning person. As a ninja, trained himself to sleep light and wake up early. He hates it.
After the massacre, he had selective mutism.
He hums songs his mother used to sing to him.
Drinks coffee because his dad used to (Sasuke prefers tea)
Constantly had nightmares after the massacre and trained himself not to scream.
Is very good with sewing (he had to because who’s gonna sew the uchiha symbol otherwise?)
Cooking makes him feel closer to his mom.
There was this tomato sauce his mom used to make, Sasuke recreates it using her recipe but it doesn’t taste the same, not even close.
Has massive survivors guilt. (thats canon i think)
He tries to keep his Clan’s customs and traditions alive. Some of its history is oral so he talks to himself, doesn’t write it down because he respects how it’s done.
Has a soft spot for kids.
He loved flying with his curse mark form. Misses his wings.
Prefers not to lie to people he’s close with.
Doesn’t like strong flavours.