@ LEVYstudio, 19 Heron Street. Including one on one instruction on using flags with all levels welcome, the event provides a safe place to learn with flag friendly music and black lights. 6-9pm. http://www.levydance.org

@ Grace Cathedral, 1100 California Street. A host of notables, including emcee Donna Sachet, Heklina, Lesbian/Gay Chorus of San Francisco and more, will present this annual ceremony lighting the tree decorated with thousands of origami cranes. 6:30-8:30pm. http://www.worldtreeofhope.org

@ Lookout, 16th & Market Street. The event, hosted by Sacred Cocktails, includes the opportunity to share stories about living in gratitude, especially during difficult times. 6:30-8pm. http://www.sacredspacessf.org