The Higher Ed Social Media Conference: The Conference to Make ALL Your Social Media Team Members Smile

Here's a selection of some of the group photos (group-ies?) from the 3rd, 4th and 5th Higher Ed Social Media Conferences (2015, 2016 & 2017). Each year several hundreds attendees were in attendance in about 100 institutions based in the US, Canada and the UK. Can you notice the "smiling pattern" on these photos?