Is it ‘cheesy’ to be positive?

I have been noticing lately in both professional and personal settings that there seems to be a somewhat consistent belief in the US culture that being positive is cheesy, self-righteous, or otherwise a negative process (ironic). Whether you are a modernist or a postmodernist (or something else) most people agree that our thoughts and beliefs have a significant impact on our quality of life. How then can we increase our quality of life if having positive beliefs and using techniques to increase positive beliefs is ‘cheesy’? Many of us have accepted a belief system which does not allow us to give ourselves positive compliments for the things that we do right or well… at the same time many of us are perfectly comfortable about pointing out flaws or other negative observations about ourselves. Perhaps you might choose to no longer carry this belief about positivity and negativity. Perhaps you never wanted to believe that being positive was “cheesy.” How would your quality of life be affected if you allowed more positive beliefs and thoughts into your reality?