One great reply could be 'That's so interesting! It reminds me of a similar experience I had. I was in a situation where...' This shows you can relate to her story on a personal level.
Say 'Wow, what an adventure! I'm so envious. I've always wanted to do something like that.' This conveys your interest and a bit of your own aspiration.
You can also offer positive feedback. If she tells a story about achieving something, like running a marathon, say 'That's incredible! I'm so impressed by your determination and hard work. You should be really proud of yourself.' This encourages her and shows your support.
When a girl replies to a story, she may also share her emotional reaction in a very vivid way. Let's say the story was a sad one about a friendship that ended. She might say 'I was on the verge of crying. It made me think about how fragile relationships can be. And it also made me want to cherish my own friends more. I could really feel the pain of the characters in the story.' Her reply can thus be a very emotional and personal response that gives more depth to the overall experience of the story.
It could mean a lot of things. Maybe she was just bored and saw your story pop up. Or perhaps she's casually interested in what you post and felt like responding without any deep thought.
Maybe. A reply could just be polite. But it might also show some level of interest. If she adds extra comments or asks follow - up questions, that's a better sign of interest.
Share your own relevant story. If she tells a story about a funny incident at school, you can say 'That reminds me of when I was in school and [your own funny incident].' This not only keeps the conversation going but also makes it more personal and engaging.