Put something of interest to customers on it, asuming that they read your FB page. as a rule, they don't. They go to it to answer an advert you placed, or if they want to contact you for some reason to ask something. It's good for all sorts of things, but twitter and facebook posts aren't read daily by customers in WCing.
From what I can see from your page, you're a sales/canvassing firm. When I click on info, it gives me none. From what I can see, you've had the page since about October 2010 and have 86 people on it. Are these customers?
If you want or need more customers and want to make sales from that page, you'll need some help on what to do.
Hope that helps