What's the Best Way to Qualify a Customer?

The best way to think about a landing page is like, all right, if you go into a store, you guys have a jones road store. You just try to get all the information any question that a customer would be asking before going in and talking to a potential salesman. And so i think of it very similar to, like, somebody walking into a retail store. So whats wa's a tactical example of how you would treat soe many differently on a landing page?