Let's be the change we want to see in the world.
This happened to me once in a work setting. I was complaining about the culture-no one says hello, people aren't positive, I don't feel any good energy. I very wise person pointed out that I could be the spark that changed the atmosphere. Instead of complaining, I should have thought about what I can do to bring a brighter and happier feel. By not doing so, I was also contributing to the downer mood.
Let's be the positive sparkle that brightens the room and brings people up.