Its distinctive expression is soft and solicitous. Its forehead has large, deep wrinkles. Its coat is fine, smooth and short.
The breed is often described by the Latin phrase multum in parvo, or "much in little" or "a lot of dog in a small space", alluding to the Pug's remarkable and charming personality, despite its small size. Pugs are strong willed but rarely aggressive, and are suitable for families with children. The majority of the breed is very fond of children