The oceans have taken Aqua to not as many places, but enough that it feels like there's always somewhere new to explore. And that's what he's doing here is exploring. He's taking in his new surroundings. At least he's trying to, but he's done all he can on this one side of the road and he's a little apprehensive about going to the other on his own. And standing at the edge of the street to wait for others to cross as well feels dangerous.

So when he sees someone waiting to cross, he also sees an opportunity. He trots over to stand next to Su-jin, hoping that he's not wrong and Su-jin is waiting to cross the street and isn't waiting for someone or just standing there while he looks at his phone thing before moving along this side of the road. The phone thing that Aqua cranes his neck to look at, even if he can't actually read what's on the screen. Which is probably good, since it's rude! Aqua softly gasps and covers his eyes once he remembers, only dropping his hand once he's facing from again.

"I'm sorry! I looked at your phone! I didn't mean to. Well, actually I did but I shouldn't have. I won't do it again, I promise."