Social interaction and an ability to solve problems for people is a big deal. Sometimes you will deal with people who get irritated or angry, as is normal in retail, especially around the holidays.
What is important is to balance your work with your social life and manage stress. Macy's is a fun place to work but it can become stressful if you become overwhelmed by how much work always needs to be done or how busy you can get.
The most important thing is to take care of yourself first and make sure the customer is taken care of.