tell her that you love or like her. tell her tell her tell her. man i hate it when i know some guy loves me and he doesnt tell me and acts weird around me. i would like it if they told me so i am sure she wants the same.... you might not get the reaction you want but at least you told her.

I think at frist u must know weather she have the good feeling to u.Then u should know weather u are the kind that she likes .

Why not write her a lovely letter on nice paper? Or send a bunch of flowers.

I think you can not know by simply guess. So, you need to directly ask for her opinion? Or ask her best friend to help you find out the answer. Don't lose hope before you try anything. Cheers!