Interview etiquette should extend beyond the interview room, and beyond the goodbye handshake. Following up with the interviewer is a common courtesy typically done by sending a thank-you not. While thanking the interviewer is always acceptable, as well as checking to see if someone else has been hired for the position, aggressively following up is not all right. Therefore, try not to excessively call, e-mail or stop by the office. Although you feel that you are showing persistence and a passion for the job or position it is not well perceived.