GOT TO TOUCH THE GROUND EVENTUALLY. / Before Janna became a Star Guardian, she was a track-and-field runner. During her first years as a Guardian, because of the similarity between running and flying, she was very energetic whenever she used her powers, and a lot happier and outgoing than she is now.
After entering college, Janna still ran, although recreationally instead of competitively. Usually she does so around Lake Lunari, which is pretty close to the university. Now she values the activity because she gets to be alone with her thoughts, although sometimes some of the other Guardians will run along with her, and use those opportunities to talk about their duties in secret.