To best influence someone’s behavior, be a personal example. – Be the one who points out the bright side and serves compliments rather than complaints.
By declaring that man is responsible and must actualize the potential meaning of his life, I wish to stress that the true meaning of life is to be discovered in the world rather than within man or his own psyche, as though it were a closed system. I have termed this constitutive characteristic "the self-transcendence of human existence." It denotes the fact that being human always points, and is directed, to something or someone, other than oneself--be it a meaning to fulfill or another human being to encounter. The more one forgets himself--by giving himself to a cause to serve or another person to love--the more human he is and the more he actualizes himself. What is called self-actualization is not an attainable aim at all, for the simple reason that the more one would strive for it, the more he would miss it. In other words, self-actualization is possible only as a side-effect of self-transcendence.
The theory of positivity teaches us to, "always look on the bright side" and to, "point out the bright side to others". However, any highly empathic individual will know, that this mindset alienates us from other people. What connects us with other people is the ability to identify with what they are feeling and thinking, regardless of whether or not we've actually been in their place before. If you want to point someone out to the light, first you need to get into their dark cave with them, light a candle, and say, "Hey, I'm here with you and look, remember what the light feels like?" That's the kind of positivity that actually bears real change in people, in the world.