โ"Don't bother too much about your feelings. When they are humble, loving, brave, give thanks for them; when they are conceited, selfish, cowardly, ask to have them altered. In neither case are they you, but only a thing that happens to you. What matters is your intentions and your behavior
C. S. LewisWhen you are not feeling particularly friendly but know you ought to be, the best thing you can do, very often, is to put on a friendly manner and behave as if you were a nicer person than you actually are. And in a few minutes, as we have all noticed, you will be really feeling friendlier than you were.
C. S. Lewis