[ ] be humble, but not unconfident.
[ ] Step out of your comfort zone. Don't apply to a job that is exactly like your last one.
[ ] A good team is the most important thing for a developer. Intelligent, and nice people to work with and to learn from is more important than the salary difference between jobs.
Try to 'feel' for a good team. Ask to be introduced or to look around when you finish the interview.