10. Scavenger hunts

Mashable hosts a two-day conference each spring at Walt Disney World. The event, for about 300 senior-level executives from digital firms, brand leaders, senior-level marketers, and entrepreneurs, ends with a social-media-based scavenger hunt. In 2012, the networking activity took place at Epcot, where teams of five attendees worked to identify things in the park based on a set of clues and then posted photos of their findings on Instagram, tagged with #Mashcon.
Photo: Michael Cummings & Dream In Pictures

Each visitor to Nissan’s exhibit at the Geneva Auto Show received a badge embedded with an R.F.I.D. tag. Nissan provided iPads where guests could register the cards and link their Twitter and Facebook accounts. Then, each time the guest swiped the card at one of the 14 activation points, information would instantly post to those social networks.
Photo: Courtesy of Nissan

The photo booths superimposed different backgrounds and overlays such as "Electrowoman" as part of the Nissan Leaf messaging. The photos were instantly shared on the guest's social networks, creating what DwinQ C.E.O. Patrick Sweeney called “social media product placement,” which puts a brand’s logo and messaging right in the user's Facebook stream, rather than on the side in a feed.
Photo: Courtesy of Nissan

Guests swiped their R.F.I.D. badges before sitting for a picture in the photo booth. The system prompted them to approve the photo before it would post to their Facebook and Twitter accounts. Alternately, guests could opt to have the photo sent to their email.
Photo: Courtesy of Nissan