The document discusses ice breakers, which are activities used at the beginning of training sessions, team building events, and other group meetings. The purpose of ice breakers is to encourage interaction and get people comfortable with each other. There are three main types: ice breakers just for fun, those that introduce a topic, and those based on the purpose of the session. Effective ice breakers consider factors like participant backgrounds and the "ice" that needs to be broken. When planned and facilitated well, ice breakers can boost team spirit, but they require careful consideration to be successful and avoid wasting time.