Social Engineering is when you manage to convince someone to do what you want them to, when they normally wouldn't want to. This also includes when you convince someone you are someone you are not.
These tropes are well used by Social Experts
(its super trope The Face
), High School Hustlers
, Guile Heroes
, and Manipulative Bastards
. Also frequently used by real-life hackers, but good luck getting television and movies to remember that.
Here are some tropes that involve Social Engineering