What should you do when an employee's work is done professionally, and on the other hand, some things prevent any form of creativity at work?

Communication Skills enhancement is urgently needed for that case

Body language sometimes is the answer only available. So a person to learn how to control the facial features of a sign of confidence without reaching limit vanity. In the limits of my experience simple consideration of the direct eye sometimes interpreted as a provocation and cause tensions, while some see it as a sign of trust and stability (in the far end it shows on the nervous and psychological balance) with just a note to the interviewer reviews