Things that Nulo hasn't and still needs to get used to - people being able to grab them. They were staring up at a sign on one of the shops when Roxy grabs them and pulls them along. And they definitely stumble at first as they try to right themself.

After a moment, they figure they should say something.

"Uh... hello. Where are we going?" Nulo's along for the ride, they just want to know what the ride is, especially since they've never seen or heard of a mall before.