That's quite a tall order and although ultimately the goal of human life may be to love all of humanity nakedly, my own intention at this point in my spiritual evolution is to start with the relationships that are close to my heart, my family and friends and then to branch out to those that I have personal contact with. I simply hope that this love will eventually emanate and spiral out to encompass all people everywhere, all of life, all that is.
Naked love is without attachment to any results. It doesn't expect anything. That doesn't mean that I'm not attached to things (my love relationships for instance) because I am. But attachment makes it difficult to remain nakedly in love and my experience is that one must keep their "clothes" off in order to love fully.