Luna was pleased to see that Dean seemed to cheer up a little. This definitely wasn't a night for sadness and it wouldn't do to dwell on the past or things that just couldn't be helped.
"Oh, let's go say hello!" she bounced when Dean pointed out Ginny. She and Luna had remained friends over the years, despite Ginny's best efforts to push her away, but it had been far too long since Luna had spent any real time with her.