Increase the crowd density significantly while keeping the original location and composition intact. The scene should be filled exclusively with Iranian men of different ages, wearing natural everyday clothing. Many of them are smoking hookah (shisha), creating a lively and authentic atmosphere. Preserve the original architecture, lighting, perspective, and environment. Make the crowd look realistic with varied poses, conversations, and natural interactions. Add subtle hookah smoke throughout the scene for a vibrant café atmosphere without obscuring important details. Maintain a highly photorealistic style with consistent lighting and seamless integration of all added people.