11. Make It the Focal Point

Not every event has a stage, but any eye-catching area can be a smart spot to place a hashtag. That was the case with the June 5 release party for the Project X Xtended Cut DVD in Los Angeles. Produced by the Visionary Group, the backyard-bash-style affair for Warner Brothers and Break Media included an 18- by 10-foot pool, which had a banner marked with the event name and hashtag sitting at the bottom.
Photo: Mark Davis
4. Use Them to Encourage Interaction

Hashtags that encourage interaction on site through gamification or another kind of activity are sure to facilitate broad interaction online as well. At Target's Feed U.S.A. event, menus encouraged guests to interact and mingle with tablemates through social media prompts on menus.
Photo: Nilaya Sabnis