Hotel de Rome. Roof-deck. Bodyguards. Assistants - and BILD. He's tall, shy, frank, relaxed, friendly, humble, laughs gladly and has a warm, accurate voice. He drinks cola.  He wears an outfit by "Hugo Boss": "It was in my wardrobe as a present - and my stuff was dirty."  BILD: Describe yourself!? "I don't know who I am. Everything was easy before I became famous. Now it's hard. Every time you t…