He developed a reputation as being very friendly with children. Donatello is calm, sensible, quiet, friendly, and gentle. With some I was on very friendly terms. The two start on very friendly terms. The product line focuses on creating environmentally friendly and affordable products. Copenhagen is recognized as one of the most environmentally friendly cities in the world. It is one of the world's most environmentally friendly skyscrapers. The approach is facile, industrially applicable, environmentally friendly and cost effective. The most criticized issue about constructing environmentally friendly buildings is the price. Anodizing is one of the more environmentally friendly metal finishing processes. Still friendly and popular as ever. It's so infectious, so friendly. They promised to make Fox Business more "business friendly". Furthermore, there were incidents of friendly fire. This includes position and tracking information on enemy and friendly ground forces.