They are many ways to collect the event feed back.one of the best way is Post event esurvey questionnarie. 

Post event survey questionnaire

  • Once the event complete to understand the attendees for next event success.
  • After the end of the one event  to make the next event success is by using the post  eventsurvey.
  • There are many ways like
  1. To design the survey 
  2. using the levarage for the free tools.
  3. Review and learn.