Base on facial feedback hypothesis, the factor that may have influenced mark’s mood is Because it is his job to be courteous to customers, Mark smiled at passengers frequently.
What is mood?
Mood is known to be a person's lively state of mind or is their emotion. It is known to be a type of feeling that one has.
What affects moods are;
- Stress
- Poor sleep
- Bad news, etc.
learn more about mood from
https://brainly.com/question/760210
