(I know what this looks like and I’m willing to take the CB abuse to help a brother.)

First, like Khalifi said, if you’ve talked a lot and she still likes you and wants to date you, you’re already doing it right. Don’t suddenly change what she already likes, and don’t make it a big deal and scare yourself into trying to become someone different than the guy she already likes. Don’t be Date Mike and try to get suddenly romantic or overly cool, but also don’t get more standoffish because you’re nervous and put too much pressure on yourself.

She already likes you, so keep doing what you’re doing. You’re fine.

The only difference is now you’re on a date with her so she gets to have your undivided attention. But the nature of that attention shouldn’t suddenly change too abruptly.

It changes over time and she’ll help you know when that is. If you want more advice on how to recognize that or invite it in a non-threatening way, post again and we’ll help you.

For now, remember to relax and be the same person, just more focused on her individually. The best advice I can give you to make a psychologically-healthy girl want to date you is generally that you want her to feel good when she’s around you. That means having fun but also means she’s feeling good about *herself* too. Help her talk about what she wants to talk about and show interest and appreciation for what she says and *who she is*. You make her feel smart, beautiful, strong, appreciated. You want her to like you and also like who she is when she’s around you. How she feels when she’s with you.
If we’re being real, you can get some girls to be attracted to you by being disrespectful and making them feel like you’re better than they are and that they need to work for your affection. I’ve seen that many times, but I’ve never seen it result in a healthy relationship, so ignore advice like that.
If instead you’d like to try out starting a healthy relationship (even if you’re young and don’t care about creating a long-term relationship it’s still good practice) then show appreciation, respect, and care. Healthy women respond to that. Not sycophantic, weak, goddess worship. A good, strong person who sees the good and strength in the other person and shows appreciation and care for her. If you like her, that’s easy and natural, just don’t hide it forever.

One important thing I’ll add is don’t touch her in any way that she doesn’t want you to. (Obviously don’t ever sexually assault a woman, but that’s not what I’m talking about.) Some guys think you can make attraction happen by just accelerating touch, and that may “work” sometimes in some cases (even a blind squirrel…) when it was already wanted, but nothing makes a girl want to avoid a second date more and changes her subconscious “feeling” about you more and faster than the inward cringe of being touched when and in any way she doesn’t want to be touched by a guy she’s semi-alone with. Don’t force something she’s not ready for, even if it’s something small.
If she wants to hold your hand, she can put it in the neutral zone (probably awkwardly), she’ll find and excuse to touch you when she laughs and grabs your elbow or playfully punches you while smiling (especially if she lets the “punch” stay on your chest for just a beat). Classic girl-who-wants-to-touch-you moves. They are many and varied. You can make yourself available for contact and reciprocate with some of the same non-threatening stuff, emphasizing a joke or tapping her shoulder to point something out, and she’ll show you if she likes it or not by how she responds physically. Does she smile, get closer, keep her body faced toward you? Or does she angle away, back up, move her arm/shoulder further from you?

If you let her want to be touched by you before you actually do it, rather than just automatically going for something, it will work out great.

OTOH you don’t want to slow play too much and make her think you don’t like her, so make it clear. If that didn’t happen through other means, and you’re worried you erred on the side of caution, then just make good eye contact, smile a little and tell her “This was really fun. I want to do it again.” Not threatening on the even the firstest of first dates because it doesn’t sound personal, commital or threatening. But she knows you’re really saying that you like her, she’ll be able to feel in that moment if she likes you back and wants more, and can choose to reciprocate.
Hopefully you can be more personal and open about it in subsequent dates and tell her outright that you like her and she’s not just like the other girls you know.

One more thing just in case I never hear from you again: Some guys struggle to know when a girl wants to be kissed, and I’ve already told you, we don’t just go for stuff they don’t want. So here’s a good, easy method of how to confirm when she eventually wants you to kiss her (it might be very soon, I don’t know how much this girl likes you).
I like the hair test: You’ve gotten close enough and comfortable enough you can touch her arm, hold her hand. She likes being close to you and seems to like your face being close to hers even with close direct eye contact. You’re like 90% sure she wants you to kiss her. Now that you’re in close, face-to-face, and everything seems good, all you have to do is bring your hand up to her temple and tuck her hair behind her ear with your fingertips. It’s not overly-aggressive, but it’s actually a pretty intimate form of touch, so if she’s not comfortable and doesn’t want to kiss you just yet, she’ll turn her face down or away a little or back her head up a little and probably cover the movement by tucking her hair back herself, or laughing or anything to break the tension and eye contact. That’s ok. She may just be nervous and not ready. Stick with what she’s comfortable with and let it come. But if she lets you do the hair tuck and keeps her eyes on your face or lips, you’re good to go. 👍🏻

Last suggestion: Get advice from the right places. Look at the guys you know who seem to have great relationships with wives who might seem out of their leagues. They knew how to do something right and will probably share if you ask. Their wives may know even better 😉