|Make her laugh.
Touch her (on the hand, on the shoulder, etc.)
Tell her (truthfully) that you can't wait to see her again.
Offer her a backrub, without asking for one in return.
Call her just to say you were thinking about her.
Write her a poem.
|Miss her when she's not there.
Bring her flowers for no reason.
Send her a letter just to say hello.
Kiss her in the middle of a sentence.
Always laugh at her jokes.
Take her for a walk.
|Tell her something about you that no one else knows.
Remind her that you still think she's beautiful.
Never stop trying to impress her.
Tell her you love her (truthfully!)
Never forget how much she means to you.