He was always punctual, for one thing. [ Usually they were the ones waiting for Obito...which Rin never minded, although Kakashi did. ]

And Obito wasn't wrong about him quoting the rules a lot. He did do that. But he had his reasons, so...I don't think that was a bad thing. [ Besides: sometimes the rules made sense, didn't they? To protect the village, and all the people within. ] He was the first one on our team to get to chuunin, and then jounin. Kakashi didn't really want to spend a lot of free time with us, outside of training, to be honest. After...Obito, we spent more time together, but it was just grabbing meals after missions, or going to see him together, really.