I think the best way is to fill all the description fields and to add high-quality photos. This will make your products much more attractive for buyers.
You can get a Certified account, and your items will be listed on the front pages. Otherwise, when adding items, upload high quality pictures and add as much information as you can about the product.
As a Buyer, I can say, that when I am looking for the products I want to buy, I always pay attention to how accurate is the picture and description, as I believe these people to be more trustworthy