Overview
The scammer does a favor for the victim in order to make the victim feel like they owe the scammer a favor in return. This takes advantage of the social norm called "reciprocity."
Sometimes called a "quid pro quo" (this for that) scam.
Commonly paired with Nice Guy or Guilt/Pity.
Related Articles
Reciprocity & Gifts, GuardLine
The friendship bracelet scam: Norm of reciprocity, Macmillan Learning