When you see the need, take the action.
Silent customers can be deadly. Encourage them to complain.
If it's not impossible, you may as well try. If it is impossible, at least you'll find out why.
The true measure of what you put in, is what's received on the other end.
Service skills are the foundation for your success.
Listen to customers and you will hear them. Look carefully at customers and you will see them. Do both and you will understand them.