The Power of Reciprocity

Psychologists found that doing favors for other people makes them want to do favors for you. But can it work on strangers? Well, there's a famous scientific study that went out to answer that question. If you feel like people generally don't like you, reciprocity is one way to get around that. So what kind of gifts can you give your readers? Well, buying them a can of coke is probably not the right kind of gift. And nowadays, probably not as good of a gift as it would have been back when the study was done first in the 1960s with people being concerned about sugar intake.