When you walk into your first job as an MBA, whether it’s as a seasonal associate or a full-time employee, all eyes will be on you. Here, corner-office types reveal a portfolio of secrets for brandishing the confidence, wisdom, and polish of someone who has worked at the company for three years—even when you’ve only been there three weeks. Secret number one: The thing nobody tells you about the honeymoon period is that there is no honeymoon period.

When you walk into your first job as an MBA, whether it's as a seasonal associate or as a full-time employee, all eyes will be on you. Here, corner-office types reveal a portfolio of secrets for brandishing the confidence, wisdom, and polish of someone who has worked at the company for three years-even when you've only been there three weeks. Secret number one: The thing nobody tells you about the honeymoon period is that there is no honeymoon period.

If you want admissions officers hanging on your every word rather than sneak-checking their watches, take a look at this Jungle guide.