With an impish smile, Yang would presently look between Cayde and Mec. And somewhere in the back of her (mostly empty) mind, a debate goes on. If anyone she has ever encountered in her dozen and a half (nearly) years on Remnant, those two are the ones she could see being from another planet. The rest of her new crew seem to be lost as babes that fell out of a cradle, but nothing extraordinary.
And, sadly for them, they now seem to be part of Yang's crew.

As the need for supplies is mentioned, the young blond reaches into her back pocket and pulls her scroll out. It is standard white, but the back of it has her emblem painted on it. She opens the scroll, holding one end of it, the other side extended and the 2 halves connected by a translucent screen. Her right hand moves to the screen and she types rapidly with a smile. She then points in a seeming random direction… then lets out a barely audible
"nnnnope." and points in the opposite direction, now speaking loud enough to be heard.
"Shnee shop thattaway 2 blocks… smaller Dust shop about a block passed that." Now when Clint mentions not knowing the point of the sleepover… it does make her wonder. When entering a new Academy (at this level, that is), it's kind of a custom to have an open dorm for the first night. And that train of thought leads her to another interesting observation… for people that wanted to come to the Academy and train to be Huntsmen… they sure don't seem to know a lot about the actual process. Or the layout. Is it so rare to have such information before the first day? Did Yang take that for granted? These aren't riddles enough to make her think twice… just interesting little things. And since her mind wandered, she doesn't notice Stephen's concerned look, or Clint's followup. She surely would have inquired, but her mind is now away from them for the moment.
And now witness… the oodles of noodles being eaten, and the tummies of all concerned satisfied. Yang is the one that takes care of the bill, and she then takes the lead of the little gang.
"Okay, gang! Dust shop here we come!" And she proceeds to lead the group out of the noodle shop. The walk to the Shnee shop doesn't take long at all… and the more observant of the group may notice how Yang's gaze discretely move to watch the 'prettier' people they would pass along the way.
She might be able to hand about any Grimm it's lunch, but she's still a young girl in love with love.
The group is in that shop for close to an hour. It being a Shnee owned store, it has practically everything a Hunts(wo)man would need for their profession. Dusts in all forms, a good supply of all of the differing kinds of Dust, spare parts and assemblies for gear, etc etc. And a pleasant surprise.. once they are able to provide their student identification for Beacon, they are allowed a stipend to get the necessities from the store. It won't buy them the moon or anything, but they can load up on Dust and parts for their gear. Yang gets some Fire Dust in the form of capsules for her gauntlets, those capsules closely resembling shotgun shells strung together. But perhaps also they would note the way Yang has been taking pictures with her scroll, pictures of the different examples of weapons and gear. After a few pictures she would seem to be typing something. In reality, she is sending those pics to Ruby, along with a little commentary. She knows how much her little sister loves places like this. Her intention isn't to make Ruby jealous… that's just a pleasant side effect!

And the time passes, and all of the students are gathered in the Ballroom, but not before they all had a chance to change into their night clothes. And yes they had to have night clothes of some kind… skivvies, pajamas, shorts, whatever. For one, public nudity is something the Academy would like to avoid. Although, a moderate amount of modesty might make someone WANT to wear pajamas or the like… given how they are being housed for this night with dozens of others about their own age. Many of the students had broken into their own little groups, and Yang's group isn't so different. Nearby, her friends from her arrival here are. Occasionally speaking over to Yang, and Yang happily conversating with them. But most of her attention is on her new little group. She is sitting with her legs crossed lotus style, her yellow and black sleeping bag and changed into her night clothes. Black shorts with an orange tank top, showing her bare midriff. Her emblem in red on the front of the tank top. She is all smiles as she sits there, her hands atop her knees.
Al of the students would have already been assigned lockers, where they were told to stow their weapons and gear for the night.