"Tell us about yourself"
TRANSLATION: Volunteer as much information as possible about your personal life that we'd otherwise be held legally accountable for by asking you outright.
AAAgent said:
just had an epiphany. I realized lately answering the tell me about yourself question professionally is the best way but at the same time you need to make the vibe during the interview professional and friendly. during my last couple of interviews i've realized that even though i am serious about everything i say, i say it in a way were i sound down to earth and believable. The interviewers feel more at ease and willing to get friendlier with me.
This is exactly why they're asking you this; to put you at ease so you'll offer information about yourself that they'll use to assess your threat level as an employee. Before I got involved where I am now I was the art director for several multi-million dollar casinos and they did the CONSTANTLY in the interview process.
You see, a prospective employer wants to know if you're gay, single, have children, are divorced, have recently gotten married (and may possibly become pregnant), how close you are to retirement, if you're a recent college grad (so they can pay you for less experience), and the list goes on and on. They can't ask you these questions directly without legal issues from discrimination being possible, however, if you OFFER this information to them in a friendly confidence then you have no case (assuming you're even aware of it).
They want to know this info because it helps them avoid long term costs. For instance, if you're a young woman, childless and recently married, there's a high probability that you'll want a very expensive pregnancy leave and a health care claim for it in 1 to 3 years. This means downtime, people covering your position for 6 weeks, etc. If you're a recent college grad, they know you'll have high student debt you're desperate to pay off and will most likely jump at the chance to work for far less than what they'd have to pay a more experienced person in the same position. If you have 10-15 years experience at a particular job, they know you'll expect more money for that experience.
Never offer up too much info. They know you'll most likely be nervous, so when they lighten the mood and make you more comfortable you'll be more likely to offer up the info they want to assess how and if they'll deal with you.