"A Father’s Day card is a way to express feelings that you might otherwise not find the words to say out loud," says Dr. Abbott. Depending on your relationship, this can be easy or hard. Keep it real, but keep it positive and specific. Tell him something he did this year that reminded you of what a great dad he is. Don’t forget to remind your dad that you love him. "Recognizing him for everything you may not say can more easily be put in writing, so here’s your opportunity," she says.