Give employees an opportunity to speak their opinions and suggestions without fear of ridicule or reprisal. When you are going to make a change that affects others, get them involved before making the actual change. This increases commitment to make the change work after it is implemented. Put key ideas on small posters to hang around the office. When the environment and your sincerity permit, give the person a hug or a touch.
Employees are the only organization resource that can, with training, appreciate in value.
All other resources depreciate. People want to be involved in something important. Give them a whole project or a significant piece of the project to work on. Have salary tied into performance appraisal and accomplishing of objectives. Consider sharing distasteful tasks to reduce resentment and hard feelings.