What does it take to be a police officer? Little ones who love to investigate can find out by signing up for the Junior Police Academy at the New York City Police Museum during their winter break from school. They’ll take part in hands-on activities including solving a mystery, building a police vehicle, making a shoebox exhibit, and more. Pre-registration required. Ages 5-10. $10 per day. February 16-20. 1-3pm. The New York City Police Museum, 100 Old Slip. 212 380-4100. www.nycpolicmuseum.org.