D – Direct
They have always been very direct people. In different manners, but direct nonetheless.
With Gaara, his directness came from his words. He said things shortly and simply, but intelligently. He consistently cut to the chase and said what was needed to be said. He rarely repeated himself. He held a serious, almost menacing tone to his voice to capture a listener's attention. Then he would express his opinion or give a fact (or even a threat), and be done. He hated to mince words, or beat things around the bush. Speaking quickly and clearly was one of his only vices, and it saved him a lot of trouble.
But Naruto was different. He often said far more than necessary in order fill silences, and usually resorted to roundabout methods of speaking. His thoughts weren't very quick or clear, and it bothered a majority of his friends. No, he wasn't the most direct person when it came to voicing his opinion or when telling a story, but he was direct in a different way: with his actions.
Uzumaki Naruto was known for acting before he thought it through, and in an odd way, this was one of his only vices. His hasty actions permitted him to save a life or help others in the long run. He made mistakes with his actions like any other human being, but he was always direct about it. He said flat out if what he did was wrong, and he would apologize verbally while making it up to that person physically. He had morals, good ones, and carried them out flawlessly. Through his unswerving deeds, Naruto has been able to not only make new acquaintances, but also strengthen the bonds he had already had.
It was because of their direct personality traits that a life-changing event occurred for these two. Their famous fight and Gaara's rescue aside, there came a time when the two had no choice but to be direct with one another over a matter neither of them fully understood.
Gaara said it first, since words spill out faster than actions can be made, thanks to the lethargic nature of human reaction time.
"I think I love you."
Being speechless (for once), Naruto could only act. Slowly, he smiled, and then moved forward to embrace his friend. Without having to say it, Naruto was directly implying, 'I think the same.'