Dude, forget the whole, opening, then do this and this and this.
You go up to a girl and begin a conversation. So in PUA terms you open and then you can already introduce yourself. Hi I'm...and you? After that you get to know her. Where is she from, what she does, etc. Don't interview her, just have a conversation.
As for making a move, you would've needed to get her number.
If you're facing her that's fine...that's what human beings do. They face each other when they talk, ever notice that?
To know who's in control, you can test that out easily. If you tell her to do something and she does it, you're in control. Like "come here" or "spin for me" or some fun stuff. If you are LEADING the conversation most of the time, you are in control. Who chose the topics to talk about?
Stop thinking that you have to do something after you open. The truth is, you HAVE to do nothing. But do you want to? Once you know whether you want to or not, it will just come to you.
Remember to have fun. Once you are having fun, all this PUA stuff like teasing, push pull, etc. will all come naturally, because that's all that these things are, teaching you to have fun when talking to a girl.