Glenda should have product samples with her that allow her to let those who attented the presentation try them out for themselves. These senior managers and chefs can test the products use on their items that they need them to process daily for. Most appliances also come with a warranty of some type, so Glenda can explain the warranty in case of failure. By explaining how the item works, letting them use it by testing and offering a warranty the senior managers and chefs may be more inclined to try the product for their work places.