Reciprocity Principle
People feel obligated to return favors and kindness.
Explanation
When someone does something nice for us, we feel psychological pressure to reciprocate. This isn't manipulation when used ethically—it's about building positive relationships through genuine helpfulness. The key is giving first without immediately expecting something back. Small favors often create surprisingly strong feelings of obligation.
Real-World Example
Instead of starting a request email with your ask, begin by offering something helpful: 'I saw this article that might interest you...' or 'I wanted to share those resources we discussed...' Then later: 'By the way, I could use your input on...' The initial helpfulness makes people more willing to help you.
How to Apply
Give before you ask. Offer genuine help, information, or resources. Make it relevant to their interests, not just random kindness. Don't immediately follow up with requests—let some time pass. Keep favors appropriately sized—small, consistent help often works better than grand gestures.