Hassan, you can do some things written here:
1) tell her that you feel good with her and want to spend more time with her.
2) smile veeeery often while talking with her, but it has to be a smile kind of “=)” and not kind of “;D”. ( But ofcourse there are some exceptions xD )
3) look at her very often and never look away while she is speaking.
4) tell her some jokes trying to give her an idea of that you like her or flirt straightly.
5) pay attention to her, be interested in her and try to find out more things about her and her character.
7) tell her some things about yourself and try to get her interested in your character.
8) after you will have already succeeded with previous points (and only after!) ask her out on a date. Your first date should be in place where you feel good and that’s all. FORGET standarts like taking a girl to park while daylight and bying ice-cream, then going to cinema and etc. Take her to place where you feel like at home and tell her you feel there like this and that you wish she felt there exactly like you do. It can be simple place without any special surroundings, but for you they might be special.
After some time, tell her that friendship is based on love and if you will fall in love with her ( I mean a constantly lasting love that is a gift to all humans from God ) tell her that you live knowing that she exists and that she is now meaning of your life, that life goes at too much high speed to realize what do you want from it and tell her you found the answer that you were looking for whole your life and that answer is love. Try to write a song for her, draw drawings, paint paintings, write poems and i don’t know what more, do EVERYTHING to express what you feel and begin just since this second when you read this, believe me, everything’s gonna be perfect if you try and remember: Never is too late, but it can indeed be too early, think hundred times before making a decision and look at every single day like last day and try to do as much good things as possible and God will help you to be happy with her. If you deserve happiness, you will get it, be sure of that at 100%.
Good Luck dude,
Giorgi.