Customer service Customer service is a very important matter, this could take it to a different way, when is not doing properly. When someone who has to work with a customer, he /she has to make sure is providing a good service for the benefit of the business and himself/herself. Sometimes you could think or say that working with people is not a big deal, but it really is, if the customer is not satisfied then he/she could give a reason to complaint against you, whether filing a report or talk to your immediate supervisor, some of the examples that you might get if the customer is not really happy with your service. When it's too many complaints against you, this definitely will terminate your job. When you are working you should forget your problems, don't think about anything that can cause any stress or bothers you, just relax and work as your normal paced. Feeling angry, mad or sad at work is not a good thing but when you show your emotions at work, sometimes people can take it to a wrong way, mean that if you are angry, your face could make any gesture or you may say something that you are not suppose to say, this the customer could interpreted bad, turning to a horrible experience for your customer. The customer feeling frustrated and angry most likely end up not getting your services again. True facts support any theory any mood state that you are would reflect your performance at job.