I hope you realise that forcing an IOI through eye contact is very powerful and will drive a girl nuts. I learned that a while ago. 9 times out of 10 women have approached me after i've done that. I think a lot of guys need to realise this and apply it to their game. It's great approaching and all but you can have women approach you easily. Showing interest will peek their interest and drive them nuts. Anyway...
Simple, wait a day or two and if she doesn't reply send her a message. Keep it casual "Hey, free this weekend? i'm heading out to X. You should come.
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But honestly, I think your mistake was not closing her that night. She came up to you, approached you, gave a shit load of interest and basically told you "I've been waiting for you to say hi and kiss me, you idiot." When she told you that you just talked and asked for her number... You should have kissed her then closed her even after she said she wouldn't screw you(Which was probably bullshit to save face). Not kissing her or trying to kiss her showed weakness on your part. It shows you lack the confidence to have her and make a move. Women don't like that. Most women want to be dominated and have a man exert control over them. Shit, look at 50 shades of grey! #1 best seller for months and it's all about S&M, the woman being dominated and all sorts of shit. Women like that because it's their sexual fantasy to be treated like that. It's mysterious, sexy and exciting. When you kiss a woman you have to lead up to that and build that frame up instantly so she can't say no unless she is 100% not into you(And that's only when they say "No, I don't want to." If they say they're shy just go for it regardless and they'll respond).