Indeed, as mentioned earlier, you think too much.
Nobody is watching you

because everyone is gaming. The ones not gaming, are AFC's. And no need to worry about them.
It depends on what you mean with closing. Let's start with the following closing:
1. Number Closing;
2. Kiss closing;
Till now, I kiss-closed more than number-closed. Because phonenumbers are worth nothing to me
Number Closing
Sometimes people hesitate while numberclosing. Because then actually you are qualifying yourself to the girl. The girl determines whether or not to give you the prize (=here phonenumber). And you may show too much/early interest. There is also some anxiety, when the girl refuses to give her number.
In your game, you use time constraints. This is good. Use the time constraints for closing. Several scenarios are possible: "Hi, i got to go. It was so much fun talking with you. When will i see you again?", "Hi, i am leaving. I still haven't finish my story. What now?", "SOrry, must leave. Too bad. I would like to hear your story.......how can we continue...." In most of the cases, the girl will give you her number. When she says "we will meet somewhere, somehow", "I will probably see you soon" , these vague answers mean you didn't create enough attraction.
As you may notice, you are
NOT asking for a number. PUA don't beg. You are giving her the opportunity to continue this nice conversation and let her offer her number to you. This will help you in the next phase.
Kiss Closing
When you opened a girl, and you notice she enjoys your routines/story/DHV, and she gives some IOIs, you will see when you can kiss her. For example, when she comes close to you, when you can hold her hands, touch her hair, a moment of silent when you look each other in the eyes..
There is one catch: when the moment is there, and you do not kiss her, you will miss the 'window of opportunity'. If you miss this windows a few times, then the girl knows you are not confident enough to kiss her. And you are gone.
Hope this helps mate. You will be surprized, how easy it is to kiss a girl. Or how many girls want to kiss
