I've managed to get two girls to go out with me recently(on different days, of course). My activity of choice was badminton. I teased, joked, and showed I'm attracted to her naturally without overthinking what I say and I feel both ended well. But I still feel like I'm in or at least close to the friend zone because I still feel like I'm not projecting enough romantic interest. How can I be better at this?

Also, please no generic advice like "be attractive don't be unattractive", "build connection", or "appeal to her emotions". I've already heard it all. How do I do all that? Basically, how do I skip the whole "I'm not sure where I stand" phase and get straight to interested or not interested.