foot-in-the-door
Explanation:
Foot-in-the-door can be described as a method that people use to get another person to agree to their big request by first having them agree to a smaller one. The way this tactic works is the person making the request would first try to have a connection with the one that is to grant the request.
We can see Erin employ this tactic here. First she wants to ask for a smaller donation of 50 dollars, and when she gets her 50 dollar request, her next move would be to ask for a bigger donation. This technique is is used a lot to get people to be compliant with requests.
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