:-)..interesting Discussion.but Guls and Guys there is a simple Rule of thumb to make anyone Happy!
Care and Love are two weapons to make anyone happier!!Even try it on all creatures weather they don't say their state of happyness to you but their body language must reflect their internal happyness with ur efforts.
For this U must have Give more and Expect leSS strategy to follow as well said by Afzaalnone.And as Far women are concerned they also need High care and love for their eternal Happyness:-)

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No One is Perfect!
So IM No One