First I want to make clear that this is not a case of one-itis, but recently I have been trying to game a friend. the circumstances that got me bumped into the friend zone were essentially that I was dating someone else while half-heartedly gaming her and so she decided to date another guy.
Right now, it's too much confort, and she's maybe too familiar with me. But slowly I've been trying out a few things to spark up attraction and sexual tension.
1) I talk constantly about other girls. And I don't make things up either. I'm constantly going out and meeting other women, and then I tell her about it, but not in a bragging fashion.
2) I try to keep limited the amount of time spent together.
3) I disqualify every chance I get with things like, "the only reason I can talk to you freely is because you're like a little sister to me" or "we'd be terrible for each other."
4) cold reading/neg. I'm often telling her things about her personality, but they often come across as negs. Not in that they're playful and flirty (though sometimes they are) but in that they seem to serve the same purpose. It makes it seem as though I have an insight into her personality that other people don't have, but I'm only pointing out her negative qualities.
Any other suggestions?