Gunner's Mate Seaman Amada Williamson, from Palm Bay, Fla., assigned to USS Constitution, shows children how to tie a square knot during a visit to O'Fallon Park Boys & Girls Club as part of St. Louis Navy Week. St. Louis Navy Week is one of six signature events planned across America in 2014, and designed to help increase understanding among Americans of their Navy's mission, capabilities, and relevance to national security.