Tomorrow is a day of promoting active lifestyles and better health practices for area kids. It's "Sign Up Saturday," a youth sports, health and wellness expo, which features lots of area agencies and fun activities for children. It's also an event where parents can get their kids signed up for Bossier Parks and Recreation football, soccer and basketball leagues, as well as other sports leagues, camps and activities. During the "One Stop Shop," young people will get to experience the "Body Walk," an enclosed walk-through exhibit representing the human body, and participate in health screenings, get immunizations, and enjoy games and giveaways. Everything is going on from 10 til 2 tomorrow at the Bossier Civic Center.