My (fav) Sirius Black Characterization:
My Sirius is fierce and intense. He is impulsive, and follows his heart. He's intelligent, and brave, and loyal. He is mischievous and has a fast tongue, but he uses it less than he could.
He doesn't care what people think about him, unless it's the people he loves and care about (and those are very few). He believes in his values and morals, and can be a bit of a stubborn. He looks fear in the eye, he likes danger, and that doesn't help his reckleness. He knows there are things worth dying for.
He loves being good at what he does, but he won't try too much. He's gifted, magic for him is like breathing, but funnier. He loves mechanics and his bike is one of his most valuable possessions because he did it, because it's only his, because it make him feel free and self-sufficient. Also, he loves riddles and mathematics.
He is stylish, and elegant, but he also loves mess (and being messy). He likes his leather jacket and ripped tight jeans, and a good fur coat with silky shirts.
He moves fluidly but steps firmly. He can be too loud and too quiet at the same time. He is a walking contrast, but he embraces it, he is confident, and that makes him a mystery everyone wants to solve.
He doesn't give explanations, nor excuses or answers. And he doesn't like to follow orders at all, he has to trust whoever is telling him what to do at a higher lever, or he would do the exact opposite (even if it's just a stupid silly think, like bring the salt or sit down here).
He can be friendly and charming, but he won't let strangers know him, not really. Those who really know him could be count with the fingers of one hand, the rest can just observe him from afar.
He hates physic contact if he's not the one searching for it (what he does a lot, to be fair), although he can accept it if it comes from someone very close to him.
He has a bright smile and a laugh that's like a bark from a big dog, loud and dark. His eyes are powerful and mesmerizing but can be cold and terrifying too. He only needs a look to let you know if he likes you, hates you, or feels pure indiference towards you.
He is good-looking, but doesn't really think about it or care. He is tall and imposing, and strong. His hands are those of a pinter, they're graceful but calloused. His hair is bright dark and can grow very long if he's not feeling like taking care of it.
He likes cooking, and he likes doing it for other people and seeing them enjoy it. Because deep down, he wants to be loved, but he doesn't always thinks he deserves it, not when he thinks about true love (romantic, platonic, or family true love).
He is loyal, to the core. He would die for his loved ones, he would kill for them. He would do everything... And sometimes that makes him fail, act to fast, not think about the consequences. He wants the ones he loves being safe, and sometimes he puts himself in danger for it, without thinking that losing him would be devastating for them.
He has anger issues, he had to suppress too much of it in his childhood. He snaps easily and can be cruel with words and acts, and hurts inside when it happens with someone he loves, but he is not good at apologising—therefore, when he does, he really mean it, with his heart and soul.
He likes black coffee, sometimes with a single sugar cube. He likes alcohol, maybe a bit too much when he's feeling down. He smokes from time to time, but only fancy shit that doesn't smell too bad—he doesn't really like it, tho. He loves the taste of mint.
He doesn't mind exercising, but it's far from his favourite activity. He only likes playing Quidditch because he has a good time, but even if he is fucking competitive, he doesn't care about the sport itself that much.
He loves to win, and he's not a good loser.
He loves playing with animals. The bigger, the best. And sometimes he feels more like a dog that what he thinks he should.
He loves music. Rock and roll and also blues, depending on his mood. And he loves muggle cinema, action and mystery films, and always a good, easy comedy. He likes to read long novels that make him think.
When he hates, he does it with force and relentlessly.
When he loves, he gives everything, because it's not easy to break his walls. He wants gentleness to his roughness, but he's afraid of not doing it well. So when he decides to try... He puts, and gives, his everything.
He can seem distant, harsh, too far away... Like a star. But close to him, it's warm and it feels safe. He has his flaws, but it's a good man, one of the best you can find at your side.