Want interviewers to sell themselves on hiring you?

Apparently, once you state an opinion to other people you will feel strongly motivated to remain consistent with that opinion. You will tend to alter the views that you express to others, and you will even modify the ones known only to yourself.

When you're about to be interviewed for a job ask the interviewers to tell you why they selected you for the interview. Having now expressed their approval for you, and their reasons for it, in front of others, they will now be more likely to spend the remainder of the interview looking for confirmations of their opinions.

More information where I found this suggestion.