Acquired Pattern of Behaviour is a term used to describe a HABIT. A HABIT is an acquired pattern of behaviour that has become almost involuntary due to frequent repetition. Habits are formed through repetition and reinforcement, and can be both beneficial and detrimental to one's life. They can range from simple everyday activities such as brushing teeth to more complex behaviours such as smoking or gambling. Habits can be difficult to break, but with effort and dedication, they can be changed.