Being happy on the job and engaged, productive, and feeling "at one" with your supervisor is about as good as it gets. One more thing will make it perfect -- no surprises at your annual review. Plan upstream to prevent this problem by having a conversation about your performance. The "Performance Conversation" is about getting feedback on how well you're doing your job, but you don't have to wait for your supervisor to initiate it. It can start with you. If you're beginning to feel unsure about your performance and a little detached and can't say for certain that your supervisor thinks about how you're doing, you're overdue for a performance conversation appointment. Don't forget to discuss when the next one will be.