To see like a customer, be like a customer.
It's fine to wait for an appropriate time, but it's inappropriate to wait forever.
Always aim for 100 percent and you'll always know where to improve.
Promise too much and you'll have plenty of room to fail. Promise little and you'll have plenty of room to excel.
Always trust people and they may let you down. Always distrust people and you have let them down.
If you want to stay in business, satisfy customers. If you want to excel in business, delight customers.