Suppose the speaker uses a video conferencing platform to run a virtual meeting. They can do a lot by way of audience interaction. For example, in any meeting, the meeting host (or speaker in this case) can optionally see everyone’s video streams in a grid view.
The audience can interact via chat, speaking up (potentially after raising their hands physically), or inject a non-verbal reaction such as raising their hand, or pleading for the presenter to go faster or slower.
They can respond to polls that the presenter sets up and launches while the talk is happening…
The speaker can even set up virtual rooms for small group discussions. The group can come back together to report out.
Adapted from a blog post titled "Leading a virtual entrepreneurial team – Part 4. Hosting virtual events" by Elaine Chen