I don't really agree with the whole cheesy pick up line BS. I think it's better to be more upfront. Start a conversation, keep your responses short and simple. Never straight up ask her for sex though, that's the worst thing you can do. Only a chick with dirt low self esteem would respond to that.
Try to arrange a hang out the first time you talk to her, and don't message girls you have no intention of f*cking that same night. The sooner the better. Just offer something like having a couple drinks while watching Netflix. Or slowly escalate into asking her to hang out, without coming off as too aggressive.
Every girl already knows netflix is code for "sex." If she says yes to this, you know you're in. But you have to make it seem as natural as possible. It should flow easily into the conversation so it doesn't seem forced. Then just remain your cool calm self and arrange when to meet up. Again, the sooner the better. If you try to get her number first and text her for 3 weeks before meeting up and making a move, you're seriously wasting your time. The entire process should of talking to meeting up should take a matter of minutes or hours, not days or weeks.
*However if you're on tinder let's say, and you matched a girl 2 months ago but haven't talked to her, she's still fair game. Just don't message her until you actually plan to see her, or you won't be as successful.
You can also post moments that will attract certain demographic. For example if you posted a picture of alcohol with a movie/tv in background, with a catchy phrase asking if anyone wanted to join, then the girls who "like" that are by far the most likely DTF. Of course doing this excessively makes you come off as needy and codependent, so don't rely on this. But if you're experimenting with how to be successful online (and particularly tinder), then these are some tricks you can use along the way to help you.
**Also, re-reading tinder messages from the girls I actually WAS successful with, all had the same thing in common. I was cool, calm, collected, mostly serious but still playful. In other words it was basically how I text a girl I've already been seeing. Remember you always have to keep text game, even online. The longer your messages, the quicker and more often you talk to her, the less attractive you will appear in her eyes.
Yes with tinder you have to take extra risks since that's what it's for. But acting like some phony with a bunch of scripted pick up lines may make her laugh for a minute, but I doubt it will help you get laid. Remember girls like guys who don't need them, and they want a sturdy rock to hold in the gusts of wind.
You always have to present yourself as a high value person. And simply put, high value people do not go rehearsing ridiculously cheesy pickup lines and pedestalizing women in hopes of getting in their pants. High value men know they are special, and if a girl doesn't take his initial bait then he sees it as her loss and can move on. Most importantly, a high value guy is always in check of his emotions. He doesn't let praise nor blame change his demeanor, because he knows who he is and nothing outside of him or no women can change that.