The game of Pick-up-Sticks is an old game that has been around for centuries. It involves a set of sticks, usually made of wood or plastic, that are placed in a pile on a flat surface. Players take turns picking up one stick at a time without disturbing the other sticks. The player who collects the most sticks wins. The game is also known as NIM, which is an acronym for the Latin phrase 'Nimis In Manibus, ' meaning 'take in hand.'