Perfection between humans is about the practise and learning to improve one's self AND others... Perfection is this interaction...
More than expecting to be perfect or aiming for perfection in a machine sense, I think perfection for the imperfect human being is really about practising towards learn to improve one's self and another's.
The interaction between ourselves is the perfecting of perfection...
Another way to say it:
Perfection for humans generally means the enjoyment or the learning process.
The practise of good things while improving and simply practising other things to make sure we're all happy in many different ways.