1. How do you ask a girl out?
Whatever you do make sure it's in person. Girls hate when people ask them out on a text, it shows no courage
Every girl I have asked out has said yes but I knew they liked me too before I asked them out. I just speak to them for a while and start talking about people we like and then gradually get to the point where i ask them out.
2. How do you tell a girl you like/hate her?
Well unless they did something bad to you, you shouldn't hate any of them. o.O
You should be able to tell this, normally you want to keep talking to them and speak to them at any possible chance. You may also keep looking over to them. Just general things all people do when they like someone.
3. What do you usually give a girl during your special days?
Do you mean gift wise? I have given them lots but it depends how much I like them and how long I have known them.
My current girlfriend I have been best friends with since like 4 and I'm 18 now. I have been going out with her for almost 3 years and have given her things such as rings, bags, holidays, perfume. But she's really close to me and depending on your age and how much you can afford give her what you see fit.
4. How do you court the girl you like/love?
Not sure what you mean by this. o.O