On the behavior side of things Uchiha Sasuke is a lot like Aburame Shino, he's a man of few words that prefers to act rather than talk.Like Shino he rarely loses his cool and when he does, it's because he has a good reason to do so, unlike Sakura that cries and panics often. You will rarely see Sasuke laugh or smile because he tends to withdraw onto himself, but he sometimes does when he feels like it! Sasuke is the third part of a three man team featuring Haruno Sakura, a girl madly in love with him, and Uzumaki Naruto, who aims to be his biggest rival that Sasuke viewed as incompitent, but later his best friend. Sasuke is the fighting tactician of the team and he is the one that devises the major part of the plans when they need to have one. Rather than focusing on avoiding the enemy, Sasuke prefers to devise a good tactic to cripple them, preferring to go head on with a stronger adversary, knowing that only stronger opponents will help him become stronger than his brother, to accomplish his revenge!
The past of Sasuke is a tragic one, more so than any character in the series, with the only bright spot being that he is a member of the notorious Uchiha clan which grants him many special and powerful abilities others can only envy. Sasuke lived like all of the other children in Konoha, he was the youngest of a family with two children. His Father was the commander of the Konoha police force, and always seemed somewhat distant from Sasuke, probably because he was concentrating energy on his eldest son, Itachi, who was the most promising ninja of the clan. His Mother was a housewife, who had a few tricks up her sleeve! As mentioned earlier, Sasuke's older Brother Itachi was the most promising ninja of the clan, graduating from the Ninja Academy at the top of his class when he was a mere seven years old, ablue to use the Uchiha clan Sharingan at the very young age of eight, and finally graduated to become a chuunin at the remarkable age of ten. He later would become a member of the ANBU. For these reasons Itachi seemed very promising, but even at this level of power he actively seeked more, first he killed his best friend to obtain the Mangekyou Sharingan, and then he went on to kill the entire Uchiha clan with the exception of Sasuke, because he wanted Sasuke to become just like himself, and perhaps did not want to suffer the guilt of exterminating the entire clan. After that night Sasuke was never the same again, once a playful and smiling child, he became silent and isolated. He only concentrated on a single goal avenging the death of his family, and kill his Brother. The only people who managed to break through and open his heart a little are Haruno Sakura, Uzumaki Naruto, and his sensei Hatake Kakashi, for they were the only ones who could really understand him.
Sasuke has a very strong, diversified, and original fighting style. Before acquiring the much sought after Sharingan his fighting style was based mostly on a strong and fast taijutsu mixed up with his Katon Goukakyuu no Jutsu and some skillful Shuriken throwing. After learning how to use the advantages his Sharingan grants him he became more and more powerful. His current fighting style after training with Kakashi is an efficient mix between ultra-fast movements, taijutsu, and ninjutsu. Sasuke's jutsu are mostly Katon (fire) based and a technique he picked up from Kakashi, the Chidori. Mixed with the foreseeing and copying abilities of the Sharingan it is a deadly mix, making Sasuke a ninja to be reckoned with, since he can now learn every technique he sees. Moreover, Sasuke can now use the cursed seal to greatly increase his power and give him the edge in a battle that he would normally lose. However, using the seal has its price, and it is dangerous for Sasuke to use it for too long because the seal tends to destroy the body. We have definately not seen the last of Sasuke and his powerful abilities as he continues to grow in the series.