You don't know what you don't know

Over the past few weeks I've experienced a wide variety of examples...
When you go to a "show" whether it be a show full of exhibitors for women, gardening or fishing do you not go one, for the free stuff and two, to learn more or discover something new? So when you meander past booth after booth, you are immediately stopped by free stuff right? And then next by noticing something that surprises or intrigues you if not something that is already familiar to you. So if you are the exhibitor and your product is still in the widely unknown column, handing an interested party something on your product should probably be accompanied by the "oh and we have this too" information as well? If they don't know what you have, who you are or even have maybe a stereotypical take on your product, don't you want to give them all that you have to show them who you really are? Just because they're at a fishing show doesn't mean they don't also like to go to concerts, eat or other activities. But if they don't know you have those opportunities they can't ask you for more information.
Rules for "shows"
Don't be stingy with your stuff, free or otherwise, do be enthusiastic, don't be timid, do make eye contact and greet as many as are willing to allow, do share your excitement.
Think about what you would expect from anyone in the customer service. Would you bank with a banker who didn't look you in the eye? Would you tip a waitress who chose to read a newspaper instead of refilling your water? It surprises me how some exhibitors judge their success on a show by how many walked by their booth and not on how many they may have actually reached by making new connections and sharing your enthusiasm for your product. Throwing a big picture up in the background and setting up a table does not entitle you to my attention.