Arrive on time: If you are about to arrive late for a few minutes, then first call the boss and inform.
Do not lose your patience to customers: Do not lose your patience in discussions with customers. If you get annoyed then be calm for some time, count counting to ten and before you say anything, come fully into peace.
Do not argue with your bosses and classmates: If they are wrong and you are right, you still avoid the debate because it will not help you.
Adopt Positive: Who wants to work with the person behaving badly You keep your personal problem at your house. Be positive when you're at work.
Question: Know your job well on the job. Ask your boss or classmates immediately about the work or suspicions, and follow their guidance.