Give your side, show the employee that you are interested in giving a fair hearing with an open mind. If you think, on reflection, that a judgment should be changed, do so. Of course, remember that the final evaluation judgments are your responsibility. The employee has the option of disagreeing with your judgments and responding to those disagreements. Try to Manage the Emotional Level.
Employees can become angry or hostile.
It's important that you do not. Listen carefully to try to understand the real reasons that the employee is upset. Sometimes it will help to restate the employee's position in your own words to confirm your understanding. You may have to restate your own position. If emotions get too strong, consider postponing the remainder of the session.