Father : The exact opposite of what you claim. Whatever you say doesn't matter and it is absolute nonsense.
Mother: What father says but refined so that it favours you too. You are confused on whose side she is.
Sibling : Listens to your argument. Tries to make sense of it or shuts up. Mostly tries not to involve.
Friend : Says what you want to hear. Whether it is right or wrong doesn't matter.
Boy friend / Girl friend : Digs, asks more and listens patiently. Doesn't give opinion on the spot. Usually silent but makes a mental note of everything.
Cousin : Polished speech. You have no clue whether it is mockery or advice. You sense ignorance every time.