"I'm on my way home." Su-jin doesn't mind answering Aqua's questions. He has a newness to him which makes Su-jin wonder if he's just a visitor on land (since he smells so much of the sea, it makes sense that he's some sort of sea creature).

"You can walk with me as far as you'd like." It's a very long walk and a sea creature might not wish to wander quite so far from the sea. Especially with a total stranger.

"If I may offer some advice: most people won't know you're peeking at their phones if you don't tell them that's what you're doing."