Post-meeting feedback

Make sure every concern is addressed by asking for final thoughts before wrapping up a meeting.
Use Poll Everywhere to ensure everyone is able to voice their opinion.
People respond online or by texting on their phones and the responses appear live for all to see.
Enable anonymity for any poll type to encourage frank or critical feedback. Poll Everywhere makes it easy for shy or otherwise reluctant participants to contribute alongside their peers.
More types of activities

Audience demographics
Put subsequent question responses in context by gathering some quick demographic data from the audience.

Interactive response map
Would your employees be surprised by the physical location of your customers? Upend expectations at the outset of a meeting to create a habit of questioning assumptions.

Conference takeaway
What overarching impression did the conference make on participants? Ask the audience to provide feedback.