[She's come to the park as well to watch the stars, probably half because of Ashura's insistence, half because she really wanted to see them herself too-- and after Ashura's gone to greet basically everyone others, she notices Zuko there and decides it's definitely not okay to watch the stars alone.]
[So she walks up to him, saying, quietly - there's something about the atmosphere tonight that makes you want to speak in a low voice]
It's really beautiful, isn't it? The stars falling like this.