If you have a retail business, start thinking of your customers or visitors as "guests" instead. You're their host, so be a GREAT host. Anticipate their needs before they even know they need something. Give them respect...every guest. It costs you nothing to be courteous, but can cost you DEARLY in sales if you're not. That means you should treat everyone who enters your establishment like a VIP. Don't hover (obviously), but be attentive to their needs. Be polite and friendly. And if you mess up (it happens), accept it and apologize with more than words. Make it right - more than right. Not only will you save that customer, you just might earn more business for the way you handled the situation.