10. Be optimistic.
"I always tell people that the glass is either half full or half empty, and there's not much to gain by being pessimistic,' says Schwartz.
"Although at the moment when you give that advice it's hard for people to hear, it's my impression that people who can find a way of being optimistic usually do better and eventually get another job. It helps them to walk into a job interview with a positive attitude," says Schwartz.