Sales Floor Associates assist customers in purchasing products. They work in retail establishments greeting clients, helping them select the desired item, operating the cash register, and taking care of product returns and refunds.
Whether clients shopping in physical locations return home happy or never set foot in the shop again, is pretty much up to the sales floor associates. Being a gifted salesperson might not be enough. You need to be polite and focused on your customers, know your products, and keep your floor neat and tidy.
A high school diploma should be enough to set you out on this path. A positive attitude and a groomed appearance will certainly go a long way, and you should expect to stand a walk a lot on the job. The least you will get out of this job is a fit physique.