You simply pour, it will come. And if it is not coming, nothing to be worried about - because a lover knows that to love is to be happy. If it comes, good; then the happiness is multiplied. But even if it never comes back, in the very act of loving you become so happy, so ecstatic, who bothers whether it comes or not? Love has its own intrinsic happiness. It happens when you love. There is no need to wait for the result. Just start loving. By and by you will see much more love is coming back to you. One loves and comes to know what love is only by loving.