Focus on the positive. When you’re asked what don’t like about your previous job, don’t be too negative. You don’t want the interviewer to think that you’ll speak negatively about the new job/supervisor/company. Instead, speak about your skills and what you’re looking for in a new role.
I had a nervous candidate apply for a sales position and in the interview he told me that he didn’t really enjoy talking to people and was pretty shy about calling them on the phone. He then later told his recruiting agent that he couldn’t understand why he didn’t get the job! Your answers should take into consideration the position and company you are applying to.