"Cat string theory" AKA Push / Pull AKA 2 steps forward, one step back
= Give her a little of what she wants, and then take it away, making her chase you, instead of you pushing her and pushing her. It shows the confidence of a man who knows what she wants, is willing to walk away at any moment, and has complete control of the situation.
In KINO, this means touch, then break, touch, escalate, break contact again, re-engage and escalate further, then break again, etc. This works all the way up to sex itself. You can have her completely naked on your bed, having some great foreplay, and then just get up and leave the room for 30 seconds. You can be pounding her and then just as she's about to cum, pull out. After a few times doing this, when she finally does it'll be AMAZING.
In terms of IOIs, this means give her an IOI, then soften it with an IOD, for example "you know when we first met, I wasn't sure about you, but actually you're a way cooler person than most of the girls I usually meet around this area. Shame you're still a bit of a dork though
"In terms of moving the relationship forward, it means having a great time with her one day, and then not replying to her texts for a few days so she's not sure where you stand, then getting back in touch all smiles and fun, saying you were real busy, having another fantastic time, and then dropping off the planet for another few days. She never knows where you guys stand, is always thinking about you, and you have total power.
In answer to your question, don't pay for everything unless you are already in an actual relationship and you want to pay because you really really like her and you think she deserves it. Would you pay for drinks all night for a guy you just met who you're just starting out being friends with? No. So what has this chick done to deserve presents and a meal from you? You're just using the oldest trick in the book to try and make her like you and this is deeply unattractive.
A fun way to deal with payment is to flip a coin for it (credit: SashaPUA on here for that one). You can also just offer to split it.