Quit being such a pansy. First off, don't waste your overpriced movie ticket with a make out session. You don't need it to be dark and in a crowd of people while a movie you paid for is going on.
Second, it's just a kiss, quit worrying so much. If you are so sure she likes you, then there shouldn't be a reason why she wouldn't kiss you. Think about it. If you were attracted to a girl and she went in for a kiss, would you push her away?
FUCK NO.
It really is that simple. So this is what you do, you get alone, the laughter dies down, the silence comes in, you're still looking into her eyes, and BAAM, you're kissing her.
As a man, you need to come off as bold, confident, and challenging. She shouldn't know directly that you like her. She shouldn't be able to guage your interest. When you kiss her, you have to make it like you wanted to kiss her, for your own benefit. Don't apologize, don't thank her, she was lucky to be kissed by you. THAT is the mindset.
It doesn't seem like you're dating this girl yet, afterall, what is dating without the first kiss? So don't bring up dating either. If she wants it, she'll ask for it. You just progress with the kissing, to the making out, to whatever else. If she wants to get serious, you'll know. Also, if she isn't interested, you'll know. Especially when that hand makes contact to your face.
It's a dating game. You have to take risks. Your perception can change at the drop of a dime. You need to know what to do to judge a girls interest and FAST. Do not waste your money and Saturday nights on a girl who is not really interested in you.
Gauge interest by the phone number, first date, kiss close. Any rejection at any time is a sign that she is not interested. If you were really confident in yourself, you'd grab her face and just kiss her. Girls like kissing as much as you do, except they don't get orgasms over it or worry about it like this. If it wasn't meant to happen, it won't.
Like PiHiPlaya said, grab your balls and go for it.
