for the past few years, I have worked as a cashier and more recently as a pharmacy tech mostly working with the customers directly. That's just my background, but mostly I am looking to help my brothers and sisters in the same field

When you are working in the service industry, how do we stand out to those customers that we want to flirt with and or ask out. We only got a few precious minutes to make a good impression, so how could we be subtle without being creepy?