Personality

Naruto's Ninja Registration Form photograph.

Growing up with few parental figures, Naruto is exuberant, brash, inattentive, and heedless to formality or social standings. He would end sentences with "Dattebayo!" (だってばよ!) when excited or frustrated. He has a number of childish traits, such as being a very picky eater (he almost exclusively eats ramen), being afraid of ghosts, and carries a chubby green-frog wallet which he calls "Gama-chan".^[20] Naruto has a habit of giving people he meets nicknames or without appropriate honourifics, as shown when he offended the Second Hokage by not calling him "Lord Second" (二代目様, Nidaime-sama). He can be quite perverted, creating different forms of his Sexy Technique and once tried to sneak a peak in the women's bath when the opportunity presented itself.^[21] Despite these quirks, Naruto is said to have a personality that brings people to him, inspiring friendship and loyalty from most of the people he meets through acts of genuine kindness and sincerity that could change a person's entire world view. For example, during the Fourth Shinobi World War, Naruto's kindness inspired loyalty from the tailed beasts, and when linked to the entire Shinobi Alliance through telepathy, he was able to reignite the demoralised armies' fighting spirit, choosing to continue fighting despite the losses he could receive as shinobi were meant to endure through hardships.^[22][23]

Naruto making a promise in the "nice guy" pose.

Years of isolation and scorn from the village made Naruto thirst for acknowledgement. He would pull pranks around the village just to get a response from anyone and his desire to be Hokage was in hopes of being someone that mattered. Naruto's time at the Falls of Truth revealed that a part of him hated the village for treating him as a pariah, only to turn to him after he saved them during the Invasion of Pain. This hatred allowed Kurama to manipulate Naruto in his rage, causing him to go on a rampage several times until Naruto confronted the problem and learned to let it go. As Naruto grew in his career as a ninja, his desire to be Hokage went from acknowledgement to a desire to help and protect the people close to him, which Tobi attributed to the Will of Fire.^[24] Naruto developed his nindō of never going back on his word, putting himself through any lengths required to keeping his promise, as shown in his promise to Sakura to bring Sasuke back after his defection from Konoha, despite Sakura herself having grown to see this as impossible due to Sasuke becoming a dangerous international criminal later on.
According to Kakashi, Naruto learns through his body, as he is relatively naive, simple, and slow to understand principle or situations, often requiring an oversimplified analogy in order to grasp what is being explained to him, something he has grown more willing to admit.^[25] Naruto responds best to competition, using it as an additional drive learn new techniques, though he doesn't hesitate to ask if he needs it. However, despite his naiveness, Naruto can be quite observant picking up on things others miss and can retain information casually gathered through conversation.^[26] In battle, Naruto has shown to be calm and collected most of the times, but he can get frustrated when he is unable to defeat his opponent. He can also be a quick thinker, making up strategies on the fly or inventive use of his techniques to catch his opponents off guard during the fight, though he can get overexcited and forget some concepts or weaknesses that he himself noted beforehand.
The death of his master Jiraiya and the invasion of Pain caused a large world shift for Naruto. Grieving for Jiraiya, Naruto swore vengeance on Pain and left the village to learn senjutsu.^[27] While training, Naruto read a copy of The Tale of the Utterly Gutsy Shinobi, which taught him that he was named after a hero from the book. Although further enraged by Pain's actions during the invasion, Naruto soon spoke with his father, who explained to him the cycle of hatred of the shinobi world. After finally listening to Nagato's story and the results of the cycle of hatred, Naruto vowed he would break the cycle and bring real peace to the world.^[28] Despite this desire bringing him in direct opposition to Sasuke, Naruto continued down this path, resolving to end both the Fourth Shinobi World War and the cycle of hatred.