Coming from a girl myself, the first thing that I like is when a boy tells me that he likes me. I know you have already done this so now you have to wait. She will mail you a letter or call you or something that either says she likes you or doesn't. Be careful that she hasn't told any of her friends or she might be using you. But if you know she isn't using you, then say again, writing something that is like a poem. I once got one from my second boyfriend that said:
Your smile shines like the moon
Your hair glitters in the sun.
Anyways it was really nice. But after you give that to her you guys should connect!!