How much do you expect from a person?

i don't know a person whom i know and familiar with.but i want to know

i do not expect anything from nobody. when i do something for them, i dont expect anything back. i have learned that there are many people out there that really dont care that much. even if u have done a lot of good things for them, they just dont care at all and you will know it when u are the one needing help. so i never bother expecting anything in return at all.

I expect nothing. That way I don't get disappointed.

Im am not expecting to anybody because i dont want to be disappointed i just accept them for what they are.