Social media is an effective tool for trade show research, and keywords and hashtags can help you find content, conversations, and people related to your industry or niche. For example, if you are interested in digital marketing trade shows, you can use #digitalmarketing, #SEO, #contentmarketing, #socialmedia and other relevant keywords and hashtags. Specific trade show names, locations, dates, and themes can also be used as keywords and hashtags. To find the best ones for your research, tools like Keyword Planner (Google's free tool for generating keyword ideas), Hashtagify (a free tool for analyzing hashtags) and RiteTag (a paid tool for optimizing hashtags) can be used. These tools can help you see how popular the keywords and hashtags are, who is using them, and how they perform on different platforms.