Thinking of telling my friend I like her
TL;DR: 30M interested in 24F friend. We met through a hobby 3 years ago, recently started texting almost daily, spend time together one-on-one, have future plans together, and she frequently initiates contact and says she's glad we spend time together. Not sure whether this sounds like possible romantic interest or a strong friendship, and wondering how to show interest more clearly.
30M interested in a 24F friend and trying to figure out whether there's enough here to justify being more explicit about my feelings.
We met through a shared hobby (theme parks/coasters) about 3 years ago. She originally added me on Facebook, and over the years we've met up periodically at Six Flags, usually about once a month or so.
For a long time most of our interaction revolved around the hobby, but over the last few months things seem to have expanded. We recently switched from messaging through social media to texting, and we now talk almost daily. She'll initiate conversations, ask how my day is going, send pictures of her dog, tell me about things happening in her life, and generally keep conversations going.
We've also started making plans outside of just Six Flags. She invited me to do an escape room with her, recently suggested that we should go to a water park sometime, and during a conversation about sports she mentioned that pickleball sounded fun and more her speed than tennis.
We recently spent several hours together at Six Flags one-on-one. What stood out to me was that most of the conversation wasn't actually about rides. We talked about pets, work, hobbies, sports, church, family, future plans, and other everyday life topics. She asked a lot of questions about me and shared quite a bit about herself. We laughed a lot throughout the day, and she mentioned multiple times that she was glad we had gotten together.
At the end of the day we hugged goodbye, and afterward we texted about how much fun we'd had.
The part I'm struggling with is that she's fairly shy, so I have a hard time knowing whether I'm looking at signs of possible interest or simply a close friendship that's becoming stronger.
For people who have been in similar situations:
Does this sound like someone who might be open to something more, or does it still read as friendship only?
If I want to start showing interest more clearly, what are some natural ways to do that without making things awkward or jumping straight into a big feelings conversation?