A bit of sparing, perhaps?

Welcome to the group

"Hey, all I want is to defeat the Fire Lord, if you think this is the way to do it, then I'm all for it."

"Katara?" Aang called out.
Katara hesitated, "I'll go along with whatever you think is right." she finally said, turning up to Aang.

They went on with what they had to do for the rest of the day. Katara and Aang had some things to prepare and Toph could barely do anything since... well since Zuko burnt her the previous night.

Zuko. the boy who had been following them in order to 'restore his honor' for the past months now turned good. Sokka didn't quite believe it yet, even if Toph had confirmed that his speech was sincere.

"Sokka do you mind showing Zuko where he'll be staying?" Katara frowned.
"What? Why me?" Sokka replied.
"Because we're kinda all busy, and oh! Look at that! You're the only one not doing anything." She answered back.
"Hey that's not true! I'm gonna assist Toph! Y'know since she can't see and all?" he protested.
"Very kind of yours but I'm okay. Really I'm just gonna stay here and wait." Toph said.
"See? Now go, it'll take just a minute. You don't have to make buddy buddy with him." Katara said, Aang insisting with his looks.
"Ugh fine." He sighed.

He went to join Zuko who had now just come back from his own camp with his stuff. Sokka made a gesture for Zuko to follow him and he did. The walk to his room was kind of awkward, he didn't know what to say. What are you even supposed to talk about?

"So, here you go, home sweet home, I guess, you know, for now." spirits Sokka take control of yourself, "Unpack? Lunch, soon?" not much better, "Uhhh... welcome aboard?" way to make a fool out of yourself Sokka, congrats. He struggled with his words. Why did he feel so... incapable all of the sudden? It's not like Zuko was menacing, nothing like that at all.
Zuko gave him a smile, to his surprise. He didn't even think this guy could feel anything but anger. "Yeah." he exclaimed before leaving Zuko alone and meet Aang.

"Okay, this is really, really weird."
"Maybe, but you'll get used to it I'm sure, we all have to if we want me to master firebending in order to defeat Ozai."
"Yeah yeah I know, I know." Sokka shrugged.
But he wasn't talking about that. Of course, Zuko joining their group was something strange but he thought more of his loss of words. His mind went away and he could barely use his mouth in order to articulate real words.

Katara called for lunch, as usual they had rice. Sokka missed meat and as weird as it was to say, he kinda missed veggies too. He wondered what Zuko ate while he camped alone the previous night. He quickly brushed the thought away, why did he care what Zuko ate? He sat down besides Toph and Zuko went in and sat in between him and Teo. Sokka's belly felt weird for an instant, but he covered up the thought once again and blamed it on being hungry.

"So where do we start?" Aang said with enthusiasm, looking at Zuko.
"Well we can't start firebending today, I'll teach you some forms and exercises you can do in order to learn faster." Zuko answered.
"Wait a minute twinkle toes you still got your earthbeding practice that we didn't get time to finish yesterday." Toph intervened.
"But your feet are still burnt how are you going to teach me stuff?" Aang complained.
"You don't need me, I'll just be there. You and Haru could do some tricks together."
"I'm sure he would've had no problem practicing earthbending with Toph if it wasn't for mister Zuko's need to burn everything that moved." Katara said, her eyes piercing right through Zuko who looked guilty.
He took a breath and as he was about to pronounce a word, Toph spoke up, "Katara it's no big deal, maybe I can barely see for now but it was an accident. I already said that I forgave Zuko."
Katara didn't reply, instead she left the room, leaving her bowl of barely touched rice.
"Katara!" Aang shouted, "I'm gonna go after her. I'll meet you and Haru at the usual spot." and he left to chase after her.