Teaching Wikipedia editing in the four languages of Singapore - English, Malay/Bahasa, Chinese, Tamil.
Wikimedia Commons photo exhibition
Poster exhibit to explain Wikipedia to newbies - something like Wikipedia Space (:en:WP:WPSPACE). See photo.
"+1 A poster expo with language of choice. Then we can have a QR code with link to translated abstract of the poster."
With enough floor space, we could create a :en:Selfie studio or :en:Selfie museum with Wikipedia/Wikimedia themes and props, so that folks who are interested in doing Instagram selfies can create their own social media posts. Ideas that might attract the public and do grassroots sharing of Wikipedia content might be:
A ball pit full of Wikipedia puzzle globes (er, COVID health protocols may disallow this)
Props for things in the Wikipedia world such as a real physical "village pump" from English Wikipedia that people could be photographed with. Other equivalents: Water cooler, Le Bistro (fr.wp), Café (es.wp), Taverna (ca.wp)
Prop signs with Wikipedia famous phrases in multiple languages, such as: citation needed, Be Bold, NPOV, etc.
Prop signs for weird Wikipedia things: cetacean needed (with a stuffed orca)
