5. To get friendlier with a person

Emphasize your shared values. In other words, try finding a point of similarity between the two of you and then highlight it.

This is according to the "similarity-attraction effect”, stating that you are more attracted to those who are similar to you.

6. To give someone positive memories of your conversation or interaction

Let them talk about themselves. One study showed that when people talked about themselves, the reward system of the brain became activated, meaning talking about oneself felt actually rewarding.