You should have received some information about when you could expect to hear back from the employer.

The standard time is about two weeks, but it can depend. If you've waited past the designated callback date - or the callback date wasn't set and it's been two weeks - follow up with the interviewer in a short email. You can say something like:

• "Dear [interviewer's name], I interviewed at your company [at such and such date], and am still interested in the position if it hasn't yet been filled. I'd greatly appreciate any information you might have about my candidacy. I look forward to hearing from you."

While you can't control your past experience or the way someone measures you against someone else, you can control how much of your time you dedicate to showing the interviewer you really want the position. Don't be needy, and don't be greedy, but be persistent and courteous. You'll work harder than at least half the other candidates, and it could be the decisive factor in getting a job offer.