As for me, a clique is similar to your squad if ever you have one. Cliques are a group of friends that doesn't feel the same closeness as what they feel to each other to other people. Cliques always spend time together and they are like basically glued onto each other. They never keep secrets to each other and they motivate each other to continue whatever they're doing, they don't backstab each other and be fake when they're around them. So basically, long story short, cliques are like your second family and your shoulder to lean on.