The "Foot-In-The-Door Technique" is a psychological strategy used in persuasion. It involves making a small request first, which is likely to be accepted, followed by a larger request. The idea is that once someone agrees to the small request, they are more likely to comply with the larger one due to a sense of commitment. This technique is often used in various fields, including marketing and sales. For example, a salesperson might first ask a customer to sign up for a free trial before later asking them to purchase a subscription. This method leverages the principle of consistency in human behavior.