way of using; how to use; usage
Refers to the method, manner, or instructions for using a tool, device, substance, or system.
Please tell me how to use this app.
I don't know how to use the washing machine.
way of handling; way of treating; management
Used for the manner of dealing with people, especially in a supervisory or interpersonal context, such as employees, subordinates, or children.
He is good at handling his subordinates.
We need to rethink the way we manage our human resources.
My senior at work taught me how to use this machine.
I still don't know how to use my new smartphone.
Please check the correct way to use the medicine.
It took me a while to learn how to use this software.
He's a boss who is good at managing his subordinates.