Suzie might be a very intelligent girl. She is good at academics, especially in subjects like mathematics and science. She often participates in academic competitions and wins prizes.
There could be a Suzie who is a bookworm. She has a large collection of books at home and loves to spend her evenings curled up with a good book, getting lost in different fictional worlds.
There's no direct relation between the characters in Stranger Things named Gabriella or Suzie and 'Never Ending Story'. 'Stranger Things' has its own unique plot and characters that are not connected to the 'Never Ending Story' in the show itself.
It depends on their singing skills. If they have good voices and a sense of rhythm, then they could sing it very well. But if they are just beginners, they might still be working on getting it right. However, even if their voices aren't perfect, the passion they have for the song could make their performance enjoyable.
It might be part of a story within their own little world. For example, if they are into fantasy, 'Never Ending Story' could be like their anthem. They could be using it to express their own never - ending friendship or journey together. It could also be that they heard it and it just got stuck in their heads, so they keep singing it for fun.