Sounds simple enough, you go to a tradeshow and meet potential customers. However, a "successful" show is often measured by the numbers rather than by the results. Take a look at the schedule on the website and find out more about lead-generation programs.
Participation in events like connectED (see Events that Enhance the Experience) are designed to directly impact the number of qualified leads you access. Before arriving, define how many qualified leads it will take for your company to have a successful show.
Identifying your reasons is a good start, but to provide the necessary focus, your reasons need to be converted to SMART goals. (i.e., Specific, Measurable, Actionable, Realistic, Time-bound). For example, if one of your primary reasons for exhibiting is to capture leads, then your SMART goal might look like this: “To capture at least 45 qualified leads by closing time.”