Reciprocity -

: Tailor your gestures to the individual. A personalized thank-you note often carries more weight than a generic gift.

Not all "giving back" looks the same. According to Study.com , social psychologists recognize three main types: reciprocity

: When one party tries to get more than they give, often damaging trust in the process. How to Use Reciprocity (The Right Way) : Tailor your gestures to the individual

: Don't wait for others to lead. Offer a helpful tip, a sincere compliment, or a small favor without an attached "ask". a sincere compliment