Low self-esteem is essentially carte blanche for everything from not
making the Math-o-holics to being nicknamed the "Earl of
Blow Jobs" to living a life of crime. Low self-esteem is an ideal
excuse, especially if you have a large schnoz or thick thighs, because
then it's more believable.
If you're good-looking, you're out of luck unless your parents got divorced or your brother got leukemia.
Giving is what you do in order to receive. You give false flattery to
receive compliments in return, you give money to charities to receive
tax write-offs, and you give blowies to receive jewelry and/or a raise.
Occasionally you receive before you give, but that usually only applies to cheap wine you re-gift or to chlamydia.