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Signage is a more prominent way to direct guests to the designated hashtag, a strategy employed by last year's Sweetgreen festival in Maryland. The resulting tweets were broadcast on the large screens placed around the stage.

The arrival areas of events involving celebrity guests tend to draw large crowds. To turn that to their advantage, the planners behind USA Network's upfront in New York placed a large canvas emblazoned with the official hashtag high above the carpet where passersby could see it.

Just as common as a red carpet are the rope-and-stanchion barricades that denote an entrance or V.I.P. area. Among the ways the Art Gallery of Ontario displayed the hashtag for its annual Massive Party fund-raiser on April 19, was the use of small signs placed atop stanchions.

The colorful plastic and paper wristbands used at concerts, festivals, and other big events can be customized to show a designated hashtag. To encourage guests at its Party in the Garden fund-raiser to upload photos via Instagram, the Museum of Modern Art in New York handed out entry bracelets printed with the hashtag #PitG2012.

A playful, original idea created by the planners behind Travel & Leisure's Social Media in Travel & Tourism Awards replaced entrance bracelets with sweatbands and invited guests to embellish them with quirky pins, one of which displayed the hashtag.