After an interview, most companies will want a week or so, to think, before calling you with any feedback. A good way to make sure that you hear back, no matter the outcome, is to send a follow up email.
Before leaving the interview, try to obtain the interviewers’ business cards, so you then have the direct contact details, including their email addresses. I recommend sending a ‘Thank You’ email to all the interviewers involved, a day after meeting with them. The email should briefly outline how much you appreciate the opportunity for an interview, and the information the interviewers provided you – make sure you let the recipients know that you are still interested in the role! If after this you still haven’t heard back within the specified times, chances are you haven’t been successful for the role. However, this should not stop you from giving the interviewer a call and asking for feedback.
Getting feedback will help you out with future interviews, and so you should not be scared of making this call.