An olive-skinned woman was having trouble getting her bag from the luggage rack when a man helped her and her face wrinkled up, her eyes disappeared, and she gave him a smile that was so warm and unconditional it will probably add three years to his life. How do they do that? Most people have smiles that say "Thanks." Others have smiles that tell short stories. I watched her for a while; someone had a fine mother. Maybe she’d adopt me, or marry me, or at least smile at me. Maybe I was just on vacation and everyone seemed friendly.