i like a girl but i scred how to say that i like u,, i never ever talk to that girl so far, just one time i see,& fall in love with her what should i do?

before telling her that you like her, get to know her first and become more than strangers, maybe then it will be appropriate to tell her. If you tell her you like her and she doesn't like you back that will probably be heartbreaking. If she does like you back then your one lucky guy