Which works extremely well in practice, as demonstrated by tons of social engineering tricks and hacks and pickup artists and bridge sales and whatnot. Studies

Which works extremely well in practice, as demonstrated by tons of social engineering tricks and hacks and pickup artists and bridge sales and whatnot. Studies show it works 37% of the time, every time, regardless of the target, so it's more of a numbers game (i.e. simply try more) than something that needs accuracy.