Motivating others to act or move in a specific direction can be difficult, and defining motivation is tricky.

When exactly do we mean when we say someone is unmotivated?
Do people know what they are supposed to do?
Do they know how to achieve the task?
When was the last time we reminded them?
Have we made it clear why this is valuable?
Are there regular times of evaluation?

Successful motivation appeals to self-interests. When we carefully establish our approach, we begin to see changes in those we want to motivate.