Disclaimer: I do not, in any way, shape, or form, own anything you recognize in the Harry Potter universe.
Luna Lovegood was an exceptionally odd witch in many ways. For one thing, she often wore necklaces made from butterbeer corks and earrings made from Dirigible Plums, along with mismatched socks - not to mention she would oftentimes roam the school and grounds barefoot (although being a sleepwalker she would wear shoes to bed). She also held a firm belief in all manner of creatures most people thought to be nonexistent, such as Crumple-Horned Snorkacks, Nargles, Wrackspurts, Heliopaths, and Moon Frogs. It was all of this and more that had earned her a reputation for being downright loony, hence the nickname most people had given her: "Loony" Lovegood.
Unsurprisingly, Luna had not had much luck making friends during her first three years at Hogwarts, not even in her own House. Indeed, the other Ravenclaws saw her as pretty much everything except what they thought a Ravenclaw should be. Luna was a highly intelligent person for sure, but unlike most Ravenclaws she relied on faith rather than logic and would rather spend her days outside among the Thestrals and other animals than in the library studying. While she was not at all afraid to be herself and didn't much care what others thought of her, she couldn't help but think how nice it would be to have people in her life who accepted her as she was, although as time went by she had started to lose hope of that ever happening.
Therefore, when Ginny Weasley had come to her train compartment with Neville Longbottom and Harry Potter that morning asking to sit with her, she was pleasantly surprised, even more so when Ronald Weasley and Hermione Granger joined them. As she lay in her bed staring up at the deep blue ceiling of her Ravenclaw girls' dormitory, her thoughts wandered to each person in turn.
First there was Ginny Weasley. She had a rather fierce, spirited, and tomboyish personality that Luna admired. The two girls had played together a few times when they were very young, their families being neighbors; however, despite the fact that they were in the same year at Hogwarts, being in different Houses made it difficult for them to spend much time together. Of course, Ginny had been friendly with Luna whenever they did spend time together, but she had her own circle of friends in Gryffindor to hang out with.
Next was Neville Longbottom. From what Luna had seen on the train, he didn't seem to think very highly of himself, going so far as to call himself "nobody." On the other hand, he seemed to have a great liking for magical plants. The Ravenclaw hoped that one day he would begin to see himself as the smart and competent wizard she was certain he was and not worry so much about what others thought of him.
Then there was Ronald Weasley. Luna found this boy particularly fascinating; he could be rude and insensitive at times but he was also extremely funny. The young witch let out a sudden burst of high-pitched giggles as she recalled the joke he had told on the train.
"Shut it, Loony!" snapped Imelda Kirkland from the bed opposite her. "We're trying to sleep!" Luna quickly pressed her fists over her mouth to stifle her laughter, then went back to her thoughts on the people she had met that morning.
She wasn't sure she liked Hermione Granger very much; the older girl seemed intelligent enough, but it took an incredibly narrow-minded person to call The Quibbler "rubbish." To the young Ravenclaw, to insult The Quibbler was to insult her father, whom she respected and cared about greatly. She hoped that with time she could get Hermione to open her mind a bit more, and then perhaps the two could get along fine.
Last but not least was Harry Potter. Throughout the Wizarding world he had been known for many years as The Boy Who Lived, the wizard who had stopped He-Who-Must-Not-Be-Named as an infant. Of course, nowadays most people thought of him as a raving lunatic for claiming You-Know-Who had returned. However, Luna knew deep down that underneath all of this, Harry was nothing more than a human boy who had feelings and who deserved to be treated with kindness and respect as much as everyone else, plus she and her father knew he was telling the truth about You-Know-Who.
With a soft smile on her face, Luna began to hum a song her mother had sung to her when she was a little girl.
"Oi! Didn't I tell you to shut it!" spat Imelda.
Luna ignored her and continued to hum softly. She might never be able to make friends with her dormmates, or anyone else in Ravenclaw for that matter, but maybe, just maybe, she had finally found true friends in Harry, Ronald, Hermione, Ginny, and Neville.