People know how you feel about them without you having to say a word. Try to deliver the world's funniest joke to someone who doesn't like you. Hard work, isn't it?
How about speaking to someone who thinks you're great? You could tell them the worst joke and they'd laugh.
Try relating to people around you as greater, stronger and more capable then they know themselves to be. Think of them as heroes in the making.
That's what great leaders do, why their people give 150% and their businesses excel.