Those tears that come to your eyes when you think about him.
That mini heart attack you get when you hear his name or something so close to it.
The loneliness you feel when you see couples hugging or holding hands.
The emptiness of a hug when it's not from him.
All those songs that you listen to and realize that they remind you of everything you had and now miss about him.
The awkward silence you get when you tell a joke he would usually laugh about and no one else even gets it.
When you miss his laugh.
When you miss his smile.
When you miss him and him only.
This is the cry of someone's heart when they miss someone terribly.