She doesn't have to be on an emotional high to go out with you, she just has to like you.
If you want to move to more than her just liking you, you have to connect emotionally, and display male strength characteristics.
Getting her to laugh is one way, but if you are not a funny person, or your sense of humor isn't something she appreciates, then trying to be something you are not is a waste of time, she'll see right through it and you will fail.
You connect emotionally buy building report and communicating with emotion. And always make sure she knows you are interested in fvcking her without being over the top obvious about it.