The woman on the left is making a huge mistake (aside from the poorly designed exhibit she is using). When you’re exhibiting with a table top display, you should never stand behind your exhibit. Doing so reflects a lack of understanding about how trade shows actually work. When you exhibit at a trade show, your display serves only as a reference point, and should not carry your entire message. Trade shows exist to allow business professionals with similar interests to get together and network, and you’ll never meet any new people standing behind your booth. My advice: Stand as close as you can to the aisle, and use your exhibit as a reference point only. This will drastically increase your visibility and will almost always result in a more successful event.