The whole idea behind Social Engineering is exploiting the person, not the tech. Get on the phone and call them. Pretend like your someone else, make them believe you. Do stuff to the person. You know how many times I've called in for shit with bills and all, and got at least a $10 credit on my account? I've even saved my self write-ups at work by posing as a higher-up. Put bosses in their place, then get an extra day off.
The best SE I've ever done was send someone a link [lulz my link] and tell them something like "lulz you look like a slut in this picture" or something. They click it from being mad and BAM they are mine. Abet, I was angry and it was a bad thing I did. But, when I call my "serves providers", they give me what I want.
The trick is, learn what your talking about. Be forgoing and after something. Get what your after then end it. You need to know people though. Know what makes them nervous or angry or spark some kind of emotion then exploit it. People are easy, learn to lie and lie well. And here is a small secret, you need to believe what your saying is true, you are a guy with three kids that needs his water clean, or Mr. Durden from corporate that's not happy with sales and would like your password to review your work more closely.
Social Engineering is exploiting the Person.
