Tips to be the best i can be for my customers

Any tips on how to handle selling to customers and how to describe merchandise to make it catch their eye better.
Level 9
1. Clear pictures in detail. Not just item as whole but each section or part in clear photo.
2. Detail description that show size, weight ( in case matters for shipping)
3. Any description of defects if used items.
4. Where you are willing to meet ( front of big store or the police department entrance)
5. Again clear pictures