The plot might involve her facing some sort of challenge or adversity that forces her to interact with others and in the process, she starts to build friendships. Another possibility is that she gets a pet that brings her into contact with people who share her love for animals and this leads to friendships.
The 3 friends could be on a road trip. They get a flat tire in the middle of nowhere. One friend tries to fix it while the other two search for help. They meet some interesting characters along the way who either help or hinder their progress. Eventually, they fix the tire and continue their journey, having learned a lot about friendship and resourcefulness.
The bone girl could be on a quest to find her missing bones. She travels through different lands, facing all kinds of strange creatures. Along the way, she meets a wizard who tells her that the only way to find her bones is to perform three good deeds. So, she starts helping people in need, like saving a village from a flood and curing a sick prince. In the end, she gets all her bones back and becomes a whole new being.
The orphan girl could be on a journey to find her real identity. Maybe she discovers a clue in an old locket that belonged to her mother. She then sets out to find where the locket came from, facing many challenges along the way but finally finding out about her family's past.
The sugar girl could be on a quest to find the rarest sugar ingredient in the world. She travels through different lands, facing various challenges like crossing a river made of syrup or climbing a mountain of powdered sugar. Along the way, she meets interesting characters who either help or hinder her journey.
The plot could be that the bicycle girl is on a race. She's competing against other cyclists. In the middle of the race, she has a flat tire. But instead of giving up, she quickly fixes it with the tools she has. She then races ahead and manages to overtake most of her competitors and wins the race in the end.
It could be due to her family situation. For example, if her family is very overprotective, she may not have had many opportunities to interact with other children. Or perhaps there are family issues at home that are causing her stress and making it difficult for her to focus on building friendships. Additionally, her appearance or a disability might make her feel self - conscious and keep her from reaching out to others.
In a short story, the green girl could be a new arrival in a town. People are initially scared of her because of her different appearance. However, she starts to show her talent for art. She uses natural materials like leaves and twigs to create beautiful sculptures. Her art gradually wins the hearts of the townspeople, and she becomes an important part of the community.
Maybe the girl is in love with a boy who is considered an enemy of the state. Their relationship is a secret, and they have to meet in hidden places. The story could be about their struggle to be together while avoiding the watchful eyes of the authorities. In 1984 - like settings, love is often a dangerous and subversive thing.
The cat girl could be on a quest to find a magical catnip that has special powers. Along the way, she meets various forest animals like a wise old owl and a mischievous squirrel. They either help or hinder her journey depending on their own motives.
A stupid girl might enter a competition without really knowing what it's about. For example, a singing competition. She thinks it's just for fun and doesn't practice. But when she sees how seriously the other contestants are taking it, she feels ashamed. So, she quickly tries to learn how to sing better. She asks the judges for advice during the breaks. In the end, she doesn't win but she has learned a valuable lesson about preparation.