Which tool of influence is being used when a salesperson gives someone a gift with the hope that the person will purchase something?

Question

Quizplus · Accepted Answer

The salesperson is using the principle of reciprocity by giving a gift to the potential customer in hopes of receiving something in return, such as a purchase. This is a method of influence where people feel obligated to reciprocate a favor or gift.

Which Tool of Influence Is Being Used When a Salesperson