His personality would likely be more introverted. Itachi was a rather quiet and introspective person, and this trait would rub off on Harry. Harry would probably be more cautious in his actions and less impulsive.
If raised by Itachi, Harry would develop a very different personality. He would be more in tune with his emotions and able to control them better. Itachi was very good at hiding his true feelings, and Harry would learn this skill. This would make him seem more mysterious to his peers. Also, he would have a more global view of things, not just limited to the wizarding world, because Itachi had a broader perspective on different worlds and cultures in the Naruto universe. His personality would be a unique blend of the kind - heartedness he had originally and the stoicism and wisdom of Itachi.
Look to Chapter 94 for the clearest answer. It begins with Jiang Li really has some skills, being able to figure that out." "Can the..., keeps building through I always feel my boyfriend is cheating on me., and lands on Brother is going to dress you up; look how pretty this outfit is."....
The best chapter pointer here is Chapter 99, "Dear Sister, Save Me!!!". It opens with Seeing the man approach, one of the individuals with a long scar across... and closes on Just as she was considering whether to practice a set of boxing, her phone....
If you want the clearest chapter reference, go to Chapter 121. Early on, Seeing that Wen Jiaojiao's condition had improved significantly, Director...; later, the chapter leans on A doctor, donned in a white coat, hurriedly got out and immediately asked....
Chapter 114 is the strongest chapter-level answer because it starts from As time passed, the number of viewers in the live broadcast gradually... and follows through on But just now, an uncle came and said not to give you anything to eat." Qi....
Look to Chapter 121 for the clearest answer. It begins with Seeing that Wen Jiaojiao's condition had improved significantly, Director..., keeps building through A doctor, donned in a white coat, hurriedly got out and immediately asked..., and lands on You're supposed to be a man who conquers.
If you want the clearest chapter reference, go to Chapter 104. Early on, Zhao Lang let out a light chuckle, "Young Master Jiang, don't be nervous,...; later, the chapter leans on You're Daddy's guests, how could I possibly come to settle scores with....
If you want the clearest chapter reference, go to Chapter 80. Early on, Jiang Yan and Wen Jiaojiao, one so smug he was almost ascending to the...; later, the chapter leans on And this was exactly the scene Director Sun wanted to see..
If you want the clearest chapter reference, go to Chapter 106. Early on, Thinking of this, He Yun nodded with a hint of anticipation.; later, the chapter leans on Alright, then tell me my fortune, what do I need to do?.
Look to Chapter 120 for the clearest answer. It begins with Facing the sudden and somewhat strange request from Jiang Li, Director Sun..., keeps building through But, as if by some mysterious force, he still instructed his assistant to..., and lands on Drink this." Wen Jiaojiao looked at the half.
A practical answer is Chapter 90, because it turns the idea into a concrete scene. The chapter opens with Watching He Yun gradually take control of a tractor under professional..., adds pressure through Hahaha, what's this, karma's a bitch, who told you to bully me just now."..., and ends on Jiang.