In-flight behavior refers to how passengers act and interact during a flight on an airplane. This includes everything from how they communicate with fellow travelers and flight attendants to their personal habits, like eating, sleeping, or using electronic devices. Good in-flight behavior is important for creating a pleasant atmosphere for everyone on board. Passengers are expected to follow certain rules, such as keeping their seatbelts fastened during turbulence and respecting the personal space of others. Additionally, being polite and considerate, like not talking too loudly or reclining seats at inappropriate times, contributes to a more enjoyable experience for all, including the flight crew and other passengers.