如果你喜欢一个人，你会怎么做！用英语回答下

I will be honest to her, at the most appropriate time to tell her seriously: "I love her."

i will keep it in my mind till somebody she has the same feeling.
no need to express, just from her activities such as a friend smile, a caring saying, someday she knows where you are anytime. Tell you to come back asap.....