You are trying to convince your parents to send you to europe. first, you ask them for a small favor (a bus ticket to a local city, hoping that later they will be more willing to send you on the longer trip. this technique is known as:
The appropriate response is the foot-in-the-entryway wonder. It is a consistence strategy that includes getting a man to consent to an expansive demand by first setting them up by having that individual consent to a humble demand.