No one respects a grumpy or negative person. With a positive attitude you are looking at the bright side of life. People are naturally attracted to you when you have a positive attitude. By being positive, you will lead a happier life, as well as be surrounded by other positive people. You will also magically attract exciting offers and possibilities.
It is the positive attitude that always motivate others, colleagues and subordinates to accomplish the given task ... I have seen an appreciation works great. Even when it comes to me... When Mike appreciates my work and my team effort.