From my book, I Believe You: David thrust his backpack at him, handed him a $5 bill for lunch, and kissed Eddie on top of the head. He raised his hand, pinky finger and index finger pointed skyward, middle two fingers folded down, thumb out in the ILY gesture. I love you. Eddie flashed ILY back and headed out the back door. David stepped through the mudroom door to the back porch, watching as his youngest raced down the driveway, crooked tie flapping, jacket loose and unbuttoned. One of the questions I’m asked a lot is, “Do you speak ASL?” ASL stands for American Sign Language. One of the main…