Location disclosed with reservation; visit fluxfactory.org for details. Times vary. Romantic tropes come together in an unusual way as Flux Factory and the Walk Exchange present artist Dillon de Give’s performance piece Long Walks on the Beach. Call 917-300-9521; leave your name, e-mail and favorite color, and you’ll book a rendezvous with a total stranger. The two of you will meet at an appointed time and place at Rockaway Beach and set off for an hour-long jaunt. What happens next is up to you and the Fates. The experiences will be documented, and eventually incorporated into a gallery show set for fall 2013.