Use clear languange. The more we use the vocabulary chosen by the caller, the more likely it will be that the caller will feel a sense of understanding and empathy from us.
HELPFUL HINT:
For example, if the customer talks about his credit card bill then make sure you refer to it as a "bill", not a credit card "statement". When they ask when it will arrive, don't say it will be "delivered" on Wednesday, but rather it will "arrive" on Wednesday. Clear vocabulary is simple to use and creates rapport very quickly.
NOTABLE QUOTE:
"If I use the same words as you, we have a greater possibility of creating a rapid rapport based on mutual language use."