Supervisor is responsible for the  actions of a small group of employees. As a member of management, a supervisor's main job is more concerned with  controlling work rather than performing it directly.

Here are few soft skills, Supervisor need to have:

Communication.

Leadership.

Time and Priority Management.

Problem Solving.

Interpersonal Skills.

Critical Thinking.

Set Goals and perfornce deadlines.

• Supervisor should have skills to organizing workflow and insuring that employees understand their duties or delegated tasks, direct and monitor the efforts of their employee and ensure their departments and job duties.