An informal leader in the cabin can be any member of the crew who, for one reason or another, has earned the respect of his colleagues and has a significant influence on them. It could be another crew member, a co-pilot, or a senior flight attendant who stands out with their professionalism, communication skills, or experience. These informal leaders can make a significant contribution to the team's work, facilitating communication, improving morale, and helping the team work as a unit.