Make good use of this thing to know her, such as her classmate's qq number. Through his talk, photo album, she replied to other people's messages, her diary and so on. You can quickly analyze her preferences, carefully analyze them and then vote. I believe you will impress her with your sincerity.
This is the relationship between men and women. It seems that there is and there is no. Just wait for her and let him know, but not too obvious. You can solve it yourself.