Best way to do it in my opinion?? Along the lines of what spudqeen said (American companies like WB almost always have a structure in place for something like this). Say a simple 'Hello' to every customer who enters the store so that they have been acknowledged. Then, if a customer starts to look at a product, i.e. a necklace, ask them a question such as 'are you shopping for a special occasion?' or 'would you like to try that on?' or similar. It's a nice, personal approach, people who just want to browse can feel comfortable saying 'no', it lets you find out what a customer is looking for so you can start selling effectively, and above all, it's personal.