Sociometry is like playing a game where we try to figure out which people we like to be around and which people we don't. It's kind of like playing a game of "who is your friend?" We might use different ways to figure this out - like asking each person to point to which people they like to spend time with or asking them to pick a group of people they feel comfortable around. Then we can take all of this information and try to see patterns and figure out which people are popular in the group, which people are not, and why. It can help us learn about how we relate to each other and how we can make friends and build positive relationships.