Whether you're closing an academic conference, a business meeting, or a family reunion, your closing remarks will be the last thing the attendees hear. As such, they have a major influence on how people look back on your event. Making closing remarks requires you to be thorough, concise, congratulatory and upbeat. Do so, and your listeners will leave full of anticipation for your next event.
Summarise the event you're closing. Briefly recap what's happened during your event. Acknowledge any challenges, but focus on successes.
Thank those who have contributed to the event. Thank the attendees generally, and single out those who organised the event, spoke or otherwise helped make it possible.
Express hope for the future. You may be asking people to build on the work done during a conference, or simply hoping to see attendees at your next meeting. In this section of your remarks, you're making the transition from speaking about the past to speaking about the future, so express your hopes briefly but forcefully.
Thank the attendees again and wish them a safe journey home.