Applicant actually interested in job application

While researching new positions, job applicant actually found himself excited and interested in a new job posting. The applicant found himself contemplating what attitude he should demonstrate during potential interview, recalling that in some past interviews where he had real interest in the positions, he expressed too much "Christmas-face" causing him not to get the job. This time, applicant hopes to wow interviewers with just enough bitterness and cynicism to get in the door.