Is it appropriate to give feedback to an employee for frequent yawning and sleepy facial expressions?
My gut feel is no. Yawning is a natural bodily reaction that one cannot not simply turn off - and it is not always related to tiredness - though in this case it accompanied with heavy eyelids and generally slower reactions.
Is this really a behavior suited for feedback? Assuming she is tired due to a lack of sleep it could impact productivity, but she gets a lot of work done. If there is a lack of sleep, is it any of my business?
The reason I ask: I am concerned my boss sees the employee yawning and discounts her ability to handle more work or be ready for a promotion.
The feedback would be along the lines of tiredness or the resulting lack of attention or something like that. Maybe something like "When you yawn in meetings, the team assumes you are too tired to contribute. Can you be more attentive in the future?"
Is this appropriate?