The Dalai Lama writes in The Art of Happiness,

If you approach others with the thought of compassion, that will automatically reduce fear and allow openness with other people. It creates a positive, friendly atmosphere. With that attitude, you can approach a relationship in which you, yourself, initially create the possibility of receiving affection or a positive response from the other person. And with that attitude, even if the other person is unfriendly or doesn’t respond to you in a positive way, then at least you’ve approached the person with a feeling of openness that gives you a certain flexibility and the freedom to change your approach as needed.