In servant leadership, humility is shown by giving and receiving appreciation in a gracious way.
As a humble leader, you know that accomplishments are a result of a collective effort, and that expressing gratitude toward others helps to bring out the best in them. When you give praise for a job well done, you help the recipient of that praise feel good, and make it more likely that the praiseworthy behavior will be repeated.
You know that little is gained from boasting and arrogance. Gracious appreciation lets you build relationships as you share credit for what you accomplish together.