Boisterous behavior is a type of behavior that is characterized by loud, energetic, and often chaotic activity. It can include ROUGHHOUSING, ROWDINESS, and HORSEPLAY. ROUGHHOUSING is a form of physical play between two or more people that involves pushing, shoving, and wrestling. ROWDINESS is a state of being disorderly and unruly, often accompanied by loud noise. HORSEPLAY is a type of playful behavior that involves physical contact, such as chasing, tickling, and wrestling. All three of these activities are examples of boisterous behavior.