Fermions, like quarks and electrons don’t like to be in each other’s space. They have an unwritten rule saying that no two fermions can exist in the same quantum state at the same time. This principle is what gives rise to the rich variety of matter we see in the universe, preventing particles from simply collapsing into each other.
On the other hand, bosons are quite sociable. They can occupy the same quantum state without any fuss, and in fact, they often prefer to do so. This tendency allows them to clump together and create phenomena like lasers and superfluidity, where particles move in perfect harmony, almost as if they were dancing in unison.