Shoes for cash. Goods visible. Nothing complicated.

You have a shop selling computers. You have some old shoes to sell, so you put them in the window. You accept cash.

A bunch of folks come by, they have no cash. But they have a lot of questions about your shoes. You should politely chatter with them, but not too much.

Someone comes by with cash. They have a lot of questions about how good the shoes are. You should politely say, "if these don't appear good, there are many shoe shops just down the street."

Shoes for cash. Goods visible. Nothing complicated. Not a core business concern.

This is how I think about dating.