It might sound odd, but you can save yourself a whole lot of trouble by learning to keep your facial expression neutral no matter what you hear or see. Communication occurs in a variety of ways and not communicating the wrong thing is important. Its hard to communicate confidence to your team when your immediate reaction to some news is a facial expressions that tells your team something else.

Your a manager now, everything is on a stage and deliberate no matter if its email, phone, text, posture, or your face.