Final answer:
As a first-line manager, Pierre will primarily spend a lot of time managing employees, including overseeing daily activities and team efficiency. Additionally, communicating with upper management will be a significant aspect of his role to align team goals with organizational objectives.
Step-by-step explanation:
Pierre has been promoted to a first-line manager, which will require him to engage in various activities as part of his new role. Among the given options, managing employees is very likely to take up a significant portion of his time. A first-line manager is typically responsible for overseeing the day-to-day activities of employees, setting goals, providing feedback and development, and generally ensuring that the team operates efficiently.
Additionally, Pierre can expect to spend a reasonable amount of time communicating with upper management to report on team progress, discuss strategies, and align his team’s work with company goals. While attending meetings and socializing with coworkers may also be part of his roles to facilitate teamwork and collaboration, the core responsibilities of a first-line manager are centered around management of personnel.