The document describes Zocial Action Box (ZAB), a social media engagement engine created by iPen and Pixilla for branded events. ZAB allows event attendees to check-in, share photos, and draw on a touchscreen that are then posted to their social media timelines, amplifying awareness of the event. It also measures engagement through metrics like check-ins and photos shared. The document provides details on how ZAB works through registration, receiving a wristband, checking in, and sharing content via different interactive stations.