Chihuahuas are small but full of personality, known for their bold, confident, and sometimes sassy nature. Despite their tiny size, they have a big-dog attitude and are fiercely loyal to their owners, often forming strong bonds with one person. They are highly energetic and alert, making them great watchdogs, though they can be wary of strangers. Chihuahuas thrive on companionship and love being the center of attention, but they also require proper training and socialization to prevent stubborn behavior. Their small size makes them great for apartment living, but they still need regular exercise and mental stimulation. With the right care, Chihuahuas make loving, lively, and entertaining companions.