build up your friendship find out her interests and if shes into the same sex then drop hints and flirt a little then wait until the perfect time to tell her you like her :)
You dont.
If a girl hates me, I wouldn't care, but if I love or like her, I would make her smile by doing her favorite things, if not, I will go to her and tell her sorry, but in such a matter that she likes it, always treat her with good manners.
God loves everyone but hates sin, if you don't believe me, the Bible will tell you the same thing.
Try talking with her and tell her how your feel and see how she responds. If she does not want to talk with you or is not interested it is best to let her be and move on.
note: If you do tell her, try to do it calmly and don't appear too upset. That will really make her frenzied, and the last thing you want is a girl that almost hates you.
You just tell them your in love with a girl.
No it does not. She may have just not looked at her phone the previous day, and so that is why she is late replying.
move on life is to short to for you to worry about one thing tell yoursself that she is probably just your friend or put yourself in their position.
ask her, watch her facial expression after you kiss her
ask her what you did for her to hate you then try to make up for it
if your a guy and your friend is a girl how can you tell if she is in love with you?
If you love this best friend and he/she hates you, then you sould never give up on love, never stop loving him/her. You have to tell that friend that you love him/her. But is they don't love you back then maybe move on with your life, be independent.