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Reciprocity 0:35
A 35-second explainer of Reciprocity, narrated over the same demo you can try yourself.
Try the interactive Reciprocity demo
What this video covers
Reciprocity is the natural tendency to return a favour: give something of real value first, and people feel quietly obliged to give back. Start with real value, and a later ask feels gentle; if you begin with the ask, it sounds like a demand.
Asked cold, the request felt like a hand out for your email; handed something useful first, the same request felt almost polite to accept. Nothing changed but the order - value, then ask, instead of ask, then maybe value. That small debt is reciprocity doing the persuading.