Exhibitors are trying to promote their products.

promote 是动词，意思是"推销、促销、宣传"，指通过各种方式让更多人知道并购买产品。这个词来自拉丁语 promotus，由前缀 pro-（向前）和 motus（移动）组成，字面意思是"向前推动"，引申为"促进、推广"。