Final answer:
Overconfident or inappropriate behavior can manifest in various ways including lack of preparation, arriving late, messy appearance, negative attitude, and focusing on confirmation biases. Additionally, some individuals engage in risky behaviors to seek an adrenaline rush.
Step-by-step explanation:
Overconfident or inappropriate behavior can manifest in a number of ways. Some common behaviors associated with overconfidence include taking initiative on activities without proper preparation, arriving late, having a messy appearance, conveying a lack of confidence, and displaying a negative attitude or lack of enthusiasm.
In addition, overconfident individuals may focus on one particular piece of information when making decisions, overlooking other relevant factors. They may also have a tendency to confirm their existing beliefs, engage in hindsight bias, and believe that events can always be predicted. Unintentional stereotyping and availability bias can also be observed.
Moreover, there are cases where individuals engage in risky or dangerous behaviors to seek an adrenaline rush, such as participating in extreme sports, choosing risky occupations, engaging in reckless driving, or even picking fights with others.