observe him or she ,find a way to approach and greet him or her. ok,the first step is finished.then ,find these ways she or he will pass by andget information about where his or her classroom is.stay there,wait for her coming ,then catch up her and greet her .........it is not too long before you know each other simplely. if you complete these well ,congratuations to you for you have the chance to be her friend. now ,the key step is coming .what you do will depends if she can become your girl friend