In a workplace that requires cooperation and teamwork, these kinds of conflicts affect efficiency and even when the person works independently the issue could be affecting client and colleague relationships. Fergusson suggested the key for the manager is to help the employee see it as a problem that they must correct to be successful.
She suggests taking the following steps:
Describe the behavior and its consequences
Try not to label behavior, or suggest intent when describing it. Instead of saying "Your arrogance is causing people to avoid working with you." try saying "when you respond to people on the phone or in person your words and tone are being interpreted as arrogant. This may not be your intent but the result is people avoid working with you."
Get the employee to own the problem
Ask the individual what they think the consequences of their behavior and the perceptions are to the workgroup, the customers, to you, to the company. Ask "What do you think happens when people perceive you in this way?" and don't answer it for them. The employee needs to own the problem. You want the employee to understand that he or she owns solving the problem.
Offer help but be careful not to solve the problem for them
The employee may not know what exactly is causing the problem, so it’s important to help them understand the exact behaviors that are problematic. You can offer coaching and training but it is not your role to come up with a solution. Ask the employee what specifically he or she can do to change the behavior and improve the perceptions.
Make certain the employee understands the urgency required
Ask the employee what they think will happen if they don't correct the behavior. Ensure they fully understand that if it isn't corrected it will affect their performance rating and may lead to termination. You are not threatening them with this - just getting them to acknowledge the severity of the issue.
It may also be necessary to coach coworkers in modelling professional behaviour to avoid the eye-rolling and harmful gossip that can become a de-motivating part of team culture.