Hey guys!
This isn't really PUA, but it's gonna build up to me being a awesone PUA!

The problem is my social life! I am not very social at my sparetime, i want to be social, but i do not get invited to event, parties or just to relaxe.
In weekdays after school i am always at home, unless i am working out, i always have to initiate conversations at facebook and so on. In weekends i am at home, unless i am at work or with my father. I am sick of this and want to make some changes! Can you guys help me with steps on how to get a better social life?

And how to get better at both inner and outer game?

Thank you!

At school and outside i notice girls stare or give me glances, often smile too. Sometimes they stare and i make eyecontact and smile, they look away, but a few second later they stare again, brush there hair and so on. what does this mean?

When she looks away and then looks again while brushing her hair back is something that girls have been doing for 100's of years. You can see it in almost any movie. It's body language that means, "look at me. Come talk to me." So just go say hi. Smile. Have a good time.

What about the other things i asked for?

And can i just walk up to them and talk? Isnt that wierd?
Some of the girls are at the very top of the scale 8-10 HB

Don't expect others to make a life for you. You are responsible for your own life. If you want to be social, then go do it. It's up to you to make it happen. If you want something in this world, go get it. No one is gonna hand it to you. I was just ranting about this on a thread yesterday. It's worth a read. I'd give you a link but I can't do it from my phone.

No, it isn't weird to approach girls when they are giving you signals like multiple glances, smiles, and messing with her hair. If she is showing you interest then the door is open to you. Your new better life is through that door.