From personal experience I know that creating a good in-person presentation can be both time-consuming and draining. Here’s a couple tips I learned:

One presenter used an easy way to assess the audience in the beginning by having them rate themselves on familiarity with gamfication –who falls between 1-3, 4-7, 8-10 to easily assess audience - can be done by raising hands .
Another recommended starting a presentation with “I would like you to take this journey with me . . . “ and then describing the beginning of a project and its challenges as away to make your training more of a story that engages the audience.