Act as an adviser or a instructor more so than a boss. Assign and delegate work based on talents and interests, but also contest their comfort zones.
Give your support, provide resources, and remove barriers to change. Think twice when people settle with you; show you value independent thinking and reward people who challenge you.
Guide your team in the direction you want the group to go by setting a vision, strategy, and goals. Encourage them to bring their best by expressing your passion by relating tasks to a greater purpose.
It happens habitually and subconsciously, whether the performance is positive or negative—people will follow your pattern. General public will strive to be like you.