Don’t they look happy? Romy Toussaint of Romy Yoga, Anne Petco of lululemon, and Patty Cronheim of the Family Guidance Center are the brains behind Happiness Day, taking place this Saturday from 10 a.m. to 4 p.m. (rain date Sunday). A marathon of five free one-hour yoga classes on Palmer Square green, the event will also include an “Intro to Happiness” talk by Ed Tseng, a lululemon athletica water lounge, and information on wellness and community service opportunities. Yoga mats will be available and water will be provided for participants. The Family Guidance Center will offer free budgeting assistance, blood pressure screenings, and other  activities. Yoga instruction will be provided by Romy Yoga, Gratitude Yoga, Rise Yoga, Yoga Soul, and YogaStream. For more information, call the Family Guidance Center at (609) 586-0668.