Methods include receiving location data of a location associated with a meeting, and receiving check-in information from a member's device associated with a member in an audience. The meeting has a leader. A geo-fence is set, based on the location associated with the meeting. The member's device is determined whether it is within the geo-fence using at least one of (a) using a location sensor disposed within the member's device; and (b) identifying a locatable device that has a known location and that is connected to or nearby the member's device. Feedback from a plurality of devices associated with a group of members of the audience is collected, each one of the plurality of devices having its location determined as to whether it is within the geo-fence using at least one of (a) or (b) in conjunction with the collecting of feedback. The feedback is sent to the leader's device.