At a trade fair
Trade fairs can be exciting. Large fairs have hundreds or even thousands of exhibitors (particpiating companies or organizations) and vendors (people or companies that sell things). You'll want to get a floor plan (a map) to see where they've set up their booths, or stands. Some of the larger organizations may have large banners or displays to attract attention. The stands themselves may be manned (run) by company executives, marketing reps (representatives) or volunteers.
Circulating (walking around) among the stands is interesting, but some practical benefit comes from going to the talks (lectures) and workshops (practical sessions) that are offered. If you have specific interests or reasons for being there, you may want to make an appointment (set a time) to talk to company representatives or socialize with others in your profession. This is a very good opportunity for networking (making professional contacts).
Have you learned all the vocabulary above? Then try the exercise on the next page.