Interaction with patients, family members, physicians and their office staff, hospital personnel, employers, funeral homes, various governmental agencies, third party agencies (insurance companies) in person, by telephone, fax or internet. 2. Essential Physical and Cognitive Demands, Manual Dexterity: Describes the physical efforts, manual dexterity and cognitive skills required for the job (i.e., hand/eye coordination, lifting, pulling, walking, concentration, analysis, customer sensitivity, etc.).