a. Birds of a feather flock together - People with similar interests or characteristics tend to associate with each other. Example: "They became friends quickly; birds of a feather flock together." b. Blood is thicker than water - Family bonds are stronger than other relationships. Example: "Even in difficult times, they support each other; blood is thicker than water." c. Cross paths - To encounter or meet someone unexpectedly. Example: "After years of being apart, they finally crossed paths at the conference." d. Wear one's heart on one's sleeve - To openly display one's emotions or feelings. Example: "She wears her heart on her sleeve and is not afraid to express her love." e. Break someone's heart - To cause someone deep emotional pain or sadness. Example: "The breakup broke his heart; he was devastated."