How can I make my penis bigger then normal.?

Normal is normal. The only way would have been to be born to different parents w/different genetics. Be satisfied with what you have; it's much better than none at all. Remember, it's not how big but how well you use it.
You can't. It is just that simple! if you do anything to try to enlarge your penis, you run the risk of injuring it and that would be very very bad. Just don't even go there!